Wikipedia

List of freshwater aquarium fish species

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A vast number of freshwater species have successfully adapted to live in aquariums. This list gives some examples of the most common species found in home aquariums.

Catfish

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Armored catfish including Aspidoras, Brochis, Callichthys, and Corydoras
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Brown-Point Shield Skin Aspidoras fuscoguttatus   3.8 cm

(1.5 in)

30 Gallons 22–25 °C (72–77 °F)[1] 5.5–6.8[1]
Aspidoras Cory-Cat

Pygmy Aspidoras

Aspidoras lakoi 4 cm (1.6 in)[2] 28 Gallons 22–25 °C (72–77 °F) 6.5-7.5
Sixray corydoras, false corydoras Aspidoras pauciradiatus   2.9 cm (1.1 in)[3] 20 Gallons 73–82 °F (23–28 °C) 6.0-7.2[3]
Loach catfish Aspidoras rochai 4 cm (1.6 in) maximum length[4] 20 Gallons 21 – 25 degrees Celsius[4] 6.0-7.5[4]
Britski's catfish Brochis britskii 8.9 cm (3.5 in) 20–24 °C (68–75 °F) 6.5-7.2[5]
Hognosed brochis Brochis multiradiatus   6.6 cm (2.6 in) 70–75 °F (21–24 °C) 6.0–7.2
Emerald catfish Brochis splendens   10 cm (3.9 in) The Emerald Cory Catfish is a very hardy and resilient fish.  Disease should not be a concern provided that you maintain the aquarium to standards.[6] 20 Gallons 72 - 82 F (22 - 27.7 C)[6] 5.8-8.0[7]
Cascarudo Callichthys callichthys   20 cm (7.9 in) 64–83 °F (18–28 °C). 5.8-8.3
Blacktop corydoras Corydoras acutus   4.4 cm (1.7 in) 22-28 °C[8] 6.0-7.5[8]
Adolfo's catfish/corydoras Corydoras adolfoi   5.7 cm (2.2 in) 72–79 °F (22–26 °C) 6.0-7.0
Bronze corydoras, Emerald green cory Corydoras aeneus   6.35 cm (2.50 in) 77 to 82 °F (25 to 28 °C) 6.0-8.0
Agassiz's corydoras Corydoras agassizii   5 cm (2 in) 22-26 °C 6.0-8.0
Spotted corydoras, longnose corydoras Corydoras ambiacus 5.1–6.1 cm (2.0–2.4 in) 27 gal 22-25 °C 6.5-7.2 71.43 - 392.86ppm
Caracha

Fairy Cory

Corydoras atropersonatus   4.5 cm (1.8 in) 20 gal 21-27 °C 5.0-7.0 36 – 179 ppm
Pink corydoras

Axelrod's Cory

Corydoras axelrodi 4–5 cm (1.5–2 in) 21 gal 22-26 °C 6.0-8.0
Masked corydoras,

bandit corydoras

Corydoras metae   4.8 cm (1.9 in) 72–79 °F (22–26 °C) 6.0-7.0
Blackstripe corydoras Corydoras bondi 4.7 cm (1.9 in) 20-26 °C[9] 6.0-7.5[9]
Tailspot corydoras Corydoras caudimaculatus 4–5 cm (1.5–2 in) 20-26 °C 6.0-7.0 36 – 179 ppm
Barred-tail corydoras Corydoras cochui
 
 2.5 cm (0.98 in) 70-75 °F 6.0 - 7.0
False blochi catfish Corydoras delphax 5 cm (2 in) 22-27 °C 5.5-7.5 36 – 215 ppm
Ehrhardt's corydoras Corydoras ehrhardti 4.1 cm (1.6 in) 18-23 °C 6.5-7.5
Elegant corydoras Corydoras elegans   5.1 cm (2.0 in)
Horseman's cory Corydoras eques   5 cm (2 in)
Evelyn's cory Corydoras evelynae 4 cm (1.6 in) 22-26 °C 6.0-8.0
Geoffrey's Corydora Corydoras geoffroy 7 cm (2.8 in) 22-26 °C 6.0-8.0
Skunk corydoras Corydoras granti   5.5 cm (2.2 in)
Guapore corydoras Corydoras guapore 4.1 cm (1.6 in)
Salt and pepper catfish/corydoras Corydoras habrosus   2.5–3.6 cm (0.98–1.42 in)
Mosaic corydoras, reticulated corydoras Corydoras haraldschultzi   5.9 cm (2.3 in)[10]
Dwarf corydoras Corydoras hastatus   3.5 cm (1.4 in)
Julii corydoras Corydoras julii   5.1–6.4 cm (2.0–2.5 in)
Corydoras latus 5.2 cm (2.0 in) 22-26 °C 6.0-8.0
False spotted catfish Corydoras leucomelas   4.5 cm (1.8 in)
Loxozonus cory Corydoras loxozonus   4.9 cm (1.9 in) 21-24 °C 6.0-7.2
Bluespotted corydoras

spotted cory

Corydoras melanistius 5.1 cm (2.0 in) 22-26 °C 6.0-7.0
Gold laser cory Corydoras melanotaenia   5.8 cm (2.3 in)
Long nosed arched cory

Long-nosed Skunk Cory

Corydoras narcissus 6.5 cm (2.6 in) 23-45 °C 6.0-7.0
Blue corydoras

Natterer's Cory

Corydoras nattereri   5.4 cm (2.1 in) 20-23 °C[11] 6.0-7.6[11]
Corydoras ornatus 4.9 cm (1.9 in) 22-26 °C 6.0-7.2
Corydoras osteocarus 4 cm (1.6 in)
Peppered corydoras, salt and pepper catfish Corydoras paleatus   5.1–7.6 cm (2.0–3.0 in)
Panda corydoras Corydoras panda   3.8–5.1 cm (1.5–2.0 in) 6.0-8.0[12]
Pastaza corydoras Corydoras pastazensis 6.4–7.1 cm (2.5–2.8 in)
Corydoras polystictus 3.2 cm (1.3 in)
Pygmy corydoras Corydoras pygmaeus   2.5–3.3 cm (0.98–1.30 in) A very peaceful species, that does not make an ideal community fish due to its small adult size. It is easily intimidated by larger tank mates and will not compete well with them for food.[13] 42.4 L (11 gal)[13] 72 to 79 °F (22 to 26 °C)[13] 6.4 to 7.4[13]
Rust corydoras Corydoras rabauti   5 cm (2 in)
Mosaic corydoras, reticulated corydoras Corydoras reticulatus 5.1–6.1 cm (2.0–2.4 in)
Banner-tail corydoras, flagtail corydoras Corydoras robineae 4.4 cm (1.7 in)
Schwartz's catfish Corydoras schwartzi   3.8–5.1 cm (1.5–2.0 in)
Corydoras semiaquilus   6.0 cm (2.4 in)
Corydoras septentrionalis 4.9 cm (1.9 in)
Corydoras simulatus 4.9 cm (1.9 in)
False network catfish Corydoras sodalis 4.9 cm (1.9 in)
Sterba's corydoras Corydoras sterbai   6.8 cm (2.7 in)[14]
Sychr's catfish Corydoras sychri 4.3 cm (1.7 in)
Threestripe corydoras, leopard catfish, false julii cory Corydoras trilineatus   6.1 cm (2.4 in)[15]
Corydoras undulatus 4.4 cm (1.7 in)
Xingu corydoras Corydoras xinguensis 3.8–5.1 cm (1.5–2.0 in)
Corydoras nain Corydoras nanus 4.5 cm (1.8 in) 22-26 °C 6.0-8.0
Flagtail catfish Dianema urostriatum   12.5 cm (4.9 in) 77–82 °F (25–28 °C) 6.0-8.0
Spotted hoplo Megalechis thoracata   15 cm (5.9 in) 64–83 °F (18–28 °C). 6-8
Scleromystax prionotos 5.3 cm (2.1 in)
Sailfin corydoras Scleromystax macropterus 8.7 cm (3.4 in) 6.0 – 8.0
Banded corydoras Scleromystax barbatus   10 cm (3.9 in) 68-82 °F

(20-28 °C)

6.0-8.0
Armored suckermouth catfish (plecos, oto, and whiptail)
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Bristlenose pleco, bushynose pleco Ancistrus spp.   The bristlenose genus has at least 59 identified species and many others yet to be named.[16] Males and female both have long "bristles" on their nose, the males having distinctly longer ones. 72-84 F (20-27 C)
Adonis pleco, polka dot lyre-tail pleco Acanthicus adonis   100 cm (39 in) 77-86 F (25-30 C)
Ancistomus spp.
Gold nugget pleco Baryancistrus spp.   77-86 F (25-30 C)
Dekeyseria spp.
Hemiancistrus spp.  
Zebra pleco Hypancistrus spp.  
Hypostomus spp.   72-86 F (22-30 C)[17] 6.5-7.5[17]
Lasiancistrus spp.
Leporacanthicus spp.  
Panaque Panaque spp.  
Clown Pleco Panaqolus spp.   20 gal[18][19] 23.0-28.0 °C or 73.4-82.4 °F[20] 6.8 - 7.6[20]
Peckoltia spp.  
Pseudacanthicus spp.  
Pineapple pleco, orange cheek pleco Pseudorinelepis genibarbis   36 cm (14 in)
Sunshine pleco Scobinancistrus aureatus 25 cm (9.8 in)
Whiptail catfish Rineloricaria spp.   It is a peaceful fish that is best kept in good sized groups (6+) in a mature tank with plenty of shady hiding spots amongst plants, driftwood, slate caves, and PVC pipes.[21] 75-82 F (24-28 C)[21] 6.0-7.2[21]
Twig catfish Farlowella spp.  
Sturisomatichthys spp.  
Hypoptopoma spp.  
Golden dwarf sucker, golden oto Otocinclus macrospilus   3.5 cm (1.4 in)
Zebra dwarf sucker, zebra oto Otocinclus cocama   4.5 cm (1.8 in)
Long-whiskered catfish
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Bolt catfish Aguarunichthys torosus 35 cm (14 in)
Gold Zebra catfish Brachyplatystoma juruense 60 cm (24 in)
Zebra shovelnose Brachyplatystoma tigrinum 60 cm (24 in)
Vulture Catfish, zamurito Calophysus macropterus   40 cm (16 in)
Leiarius marmoratus   100 cm (39 in)
Leiarius pictus 60 cm (24 in)
Redtail catfish Phractocephalus hemioliopterus   120 cm (47 in) Needs at least a 2,600 US gallons (9,800 L) tank when mature, even though this does not provide them with the space to show their natural behaviour.[22] 70–79 °F (21–26 °C)[22] 6.0–7.5[22]
Spotted pimelodus, pictus, pictus catfish Pimelodus pictus   30 cm (12 in)
Sturgeon catfish Platystomatichthys sturio 40 cm (16 in)
Barred sorubim Pseudoplatystoma fasciatum   104 cm (41 in)
Tiger sorubim Pseudoplatystoma tigrinum   130 cm (51 in)
Firewood catfish, (planiceps) shovelnose catfish Sorubimichthys planiceps   178 cm (70 in)
Lima shovelnose catfish Sorubim lima   40 cm (16 in)
Squeakers and upside-down catfish
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Brichard's syno Synodontis brichardi   15 cm (5.9 in)
Cuckoo squeaker Synodontis multipunctatus   27.5 cm (10.8 in)
Clown squeaker Synodontis decorus 32 cm (13 in)
Even-spotted squeaker, dwarf lake syno, false cuckoo syno Synodontis petricola   10 cm (3.9 in)
Featherfin squeaker Synodontis eupterus   30 cm (12 in)
Malawi squeaker Synodontis njassae   19 cm (7.5 in)
Polka dot squeaker, angel squeaker Synodontis angelicus   55 cm (22 in)
Orangestriped squeaker, pyjama syno Synodontis flavitaeniata   19.5 cm (7.7 in)
Upside-down catfish Synodontis nigriventris   9.6 cm (3.8 in) S. nigriventris prefers bottom feeding on Tubifex (or similar worms), but its main diet consists of algae.[23] The blotched upside-down catfish is well suited to aquariums because of its small size (typically 9 or 10 cm or less) and peaceful demeanor.[citation needed] 72–82 °F (22–28 °C)[24] 6.0 - 7.5[24]
Yellow marbled syno, vermiculated syno Synodontis schoutedeni   17 cm (6.7 in)
Other catfish
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Three-striped African catfish Pareutropius buffei 11.5 cm (4.5 in)
Giraffe catfish Auchenoglanis occidentalis   70 cm (28 in)
Electric catfish Malapterurus electricus   122 cm (48 in)
Eel catfish Channallabes apus   33 cm (13 in)
Black lancer catfish Bagrichthys macracanthus 25 cm (9.8 in)
Harlequin lancer catfish Bagroides melapterus 30 cm (12 in)
Crystal-eyed catfish Hemibagrus wyckii 71 cm (28 in)
Shadow catfish Hyalobagrus flavus   4.5 cm (1.8 in)
Mystus bimaculatus 6.5 cm (2.6 in)
Dwarf bumblebee catfish Pseudomystus leiacanthus 6 cm (2.4 in)
Pseudeutropius moolenburghae 10 cm (3.9 in)
Glass catfish Kryptopterus vitreolus   8 cm (3.1 in).
Striped glass catfish Kryptopterus macrocephalus 10 cm (3.9 in).
Goonch Bagarius lica 200 cm (79 in)
Chocolate frogmouth catfish Chaca bankanensis   20 cm (7.9 in)
Asian banjo catfish Acrochordonichthys rugosus 11 cm (4.3 in)
Walking catfish Clarias batrachus   50 cm (19.5 in) The albino form is common in the aquarium trade. This fish can survive out of the water and "walk" as long as kept wet, for a very long time.[25]
Black catfish, Narrowfront tandan Neosilurus ater 47 cm (19 in)
Stinging catfish Heteropneustes fossilis   30 cm (12 in)
Sun catfish Horabagrus brachysoma   45 cm (18 in)
Asian redtail catfish Hemibagrus wyckioides 130 cm (51 in)
Asian upside down catfish Mystus leucophasis   30 cm (12 in)
Asian bumblebee catfish Pseudomystus siamensis 15 cm (5.9 in)
Indawgyi stream catfish Akysis prashadi 6 cm (2.4 in)
Asian stone catfish Hara jerdoni 4 cm (1.6 in)
Iridescent shark Pangasianodon hypophthalmus   130 cm (51 in)
Chao Phraya giant shark, giant pangasius Pangasius sanitwongsei   300 cm (120 in)
Colombian shark catfish Ariopsis seemanni   35 cm (14 in)
Blue whale catfish Cetopsis coecutiens   27 cm (11 in)
Banjo catfish Bunocephalus coracoideus   14 cm (5.5 in)
Giant raphael catfish Megalodoras uranoscopus   60 cm (24 in)
Ripsaw catfish Oxydoras niger   90 cm (35 in)
Striped raphael catfish Platydoras armatulus   43 cm (17 in)
Spotted raphael catfish Agamyxis pectinifrons   15 cm (5.9 in)
Bottlenose catfish Ageneiosus inermis 18.5 cm (7.3 in)
Gulper catfish Asterophysus batrachus   25 cm (9.8 in)
Midnight catfish Auchenipterichthys coracoideus 10 cm (3.9 in)
Oil catfish Duringlanis perugiae 5 cm (2.0 in)
Jaguar catfish Liosomadoras oncinus 17 cm (6.7 in)
Tatia intermedia 12 cm (4.7 in)
Pygmy driftwood catfish Trachelyichthys exilis 8 cm (3.1 in)
Trachelyopterus fisheri 28 cm (11 in)

Characoids

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Tetras
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Arowana tetra Gnathocharax steindachneri   5 cm (2.0 in)
Black phantom tetra Hyphessobrycon megalopterus   3.6 cm (1.4 in)[26] The black phantom tetra enjoy being in groups of 6 or more and a slightly shaded tank. Males may claim small territories and occasionally minor battles may occur. The Phantom tetra goes well with other tetras of similar size. They also prefer floating plants.[27]
Black neon tetra Hyphessobrycon herbertaxelrodi   3.2 cm (1.3 in)[28]
Black tetra, skirt tetra Gymnocorymbus ternetzi   5 cm (2.0 in) A highly spirited fish that may occasionally chase its own species as well as harass slow moving fish with long fins. This fish is very hardy and can stand a variety of water qualities. Disease is not a big problem with the black tetra. The black tetra is also known as the black skirt tetra. The female black tetra is more robust and larger than the male.[29]
Black morpho tetra Poecilocharax weitzmani   4 cm (1.6 in)
Bleeding heart tetra Hyphessobrycon erythrostigma   6.5 cm (2.6 in) The bleeding heart tetra is distinguished by the small red spot on both sides of the fish. This fish is very prone to diseases, and can grow larger than most tetra species.[30]
Bloodfin tetra Aphyocharax anisitsi   5 cm (2.0 in)
Blue tetra Knodus borki   5 cm (2.0 in)
Blueberry tetra Hyphessobrycon wadai 3.5 cm (1.4 in)
Brittanichthys axelrodi 3 cm (1.2 in)
Bucktooth tetra Exodon paradoxus   5 cm (2.0 in)
Buenos Aires tetra Hyphessobrycon anisitsi   7.5 cm (3.0 in)
Cardinal tetra Paracheirodon axelrodi   5 cm (2.0 in) Similar to the Neon Tetra, but slightly larger and doesn't prefer to school as much. They need much larger tanks, although their temperament is similar.[31]
Cave tetra, blind tetra Astyanax mexicanus   12 cm (4.7 in) The cave tetra is the blind cave form of the Mexican tetra. This tetra prefers low to moderate lighting.[32]
Cochu's blue tetra Boehlkea fredcochui   6 cm (2.4 in)
Colombian tetra Hyphessobrycon columbianus   6.5 cm (2.6 in)
Diamond tetra Moenkhausia pittieri   6 cm (2.4 in)
Dawn tetra Aphyocharax paraguayensis 3.5 cm (1.4 in)
Ember tetra Hyphessobrycon amandae   2 cm (0.79 in) Ember tetras have been known to live ten years or more. May become stressed by the presence of larger fish.[33] 50 liters (13 U.S. gal)[34] 24–28 °C (75–82 °F)[34] 5 - 7 pH[34]
Emperor tetra Nematobrycon palmeri   5 cm (2.0 in)
Flame tetra Hyphessobrycon flammeus   2.5 cm (0.98 in)
Flame-back Bleeding heart tetra Hyphessobrycon pyrrhonotus 4.5 cm (1.8 in)
Garnet tetra, pretty tetra Hemigrammus pulcher   6.5 cm (2.6 in)
Glass bloodfin tetra Prionobrama filigera   6 cm (2.4 in)
Glowlight tetra Hemigrammus erythrozonus   3.75 cm (1.48 in)
Golden pristella tetra Pristella maxillaris   5 cm (2.0 in)
Green neon tetra Paracheirodon simulans   2.5 cm (0.98 in) Similar to Neon Tetras and Cardinal Tetras, they are the same to Neon Tetras beside having a green tiny near their top dorsal fin[35]
Head and tail light tetra Hemigrammus ocellifer   4 cm (1.6 in)
Hummingbird tetra Trochilocharax ornatus 2 cm (0.79 in)
January tetra Hemigrammus hyanuary   4 cm (1.6 in)
Lemon tetra Hyphessobrycon pulchripinnis   5 cm (2.0 in)
Neon tetra Paracheirodon innesi   3.75 cm (1.48 in) Neon tetras must be kept in groups of at least a half-dozen, as they are a shoaling species. With peaceful dispositions, they are also able to be kept with other species of non-aggressive fish.[36] 38 L (10 gal)[36] 68 to 79 F (20 to 26 C)[36] 6.0–7.0[37]
Ornate tetra Hyphessobrycon bentosi   4.5 cm (1.8 in)
Penguin tetra, blackline penguinfish Thayeria boehlkei   6.5 cm (2.6 in)
Peruvian tetra Hyphessobrycon peruvianus 4 cm (1.6 in)
Rainbow tetra Nematobrycon lacortei 4 cm (1.6 in)
Red and Blue Peru tetra Hyphessobrycon margitae 4 cm (1.6 in)
Red eye tetra

Lamp eye tetra

Moenkhausia sanctaefilomenae   4 cm (1.6 in)
Red-line lizard tetra Iguanodectes geisleri   5.5 cm (2.2 in)
Red phantom tetra Hyphessobrycon sweglesi   4.5 cm (1.8 in)
Redflank bloodfin Aphyocharax rathbuni 4.5 cm (1.8 in)
Rosy tetra Hyphessobrycon rosaceus   4 cm (1.6 in)
Royal tetra Inpaichthys kerri   3.5 cm (1.4 in) Possesses an adipose fin allowing it to be differentiated from the Emperor tetra [38]
Ruby tetra Axelrodia riesei 2 cm (0.79 in)
Rummy-nose tetra Hemigrammus rhodostomus   5 cm (2.0 in) This common name is used for three different species of schooling fish with similar patterns: Hemigrammus rhodostomus, Hemigrammus bleheri, and Petitella georgiae.
False rummy-nose tetra Petitella georgiae   5 cm (2.0 in) This common name is used for three different species of schooling fish with similar patterns: Hemigrammus rhodostomus, Hemigrammus bleheri, and Petitella georgiae.
Splash tetra Copella arnoldi   5.5 cm (2.2 in)
Spotted splashing tetra Copella meinkeni 4.5 cm (1.8 in)
Pyrrhulina spilota 7 cm (2.8 in)
Serpae tetra Hyphessobrycon serpae   4.5 cm (1.8 in)
Silvertip tetra Hasemania nana   3 cm (1.2 in)
Tucanoichthys tucano 2 cm (0.79 in)
X-ray tetra Pristella maxillaris   4.5 cm (1.8 in) Also just called the X-ray fish.
Yellow phantom tetra Hyphessobrycon roseus 2 cm (0.79 in)
African moon tetra Bathyaethiops caudomaculatus 8 cm (3.1 in)
Congo tetra Phenacogrammus interruptus   7.5 cm (3.0 in) Peaceful but may scare shy species with its active swimming and large adult size. Recommended for most community tanks however. Do not keep Congo tetras with fin-nipping species as the spectacular fins of the males will be destroyed.[39] 108 L (28.5 gal)[39] 73-82 °F (23-28 °C)[39] 6.0-7.5[39]
Phenacogrammus aurantiacus 10 cm (3.9 in)
Jellybean tetra Ladigesia roloffi   3 cm (1.2 in)
Long-fin tetra Brycinus longipinnis   12.5 cm (4.9 in)
Niger tetra Arnoldichthys spilopterus   10 cm (3.9 in)
Alestopetersius brichardi 8 cm (3.1 in)
Yellow-tailed Congo tetra Alestopetersius caudalis   6 cm (2.4 in)
Hatchetfish
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Common hatchetfish Gasteropelecus sternicla   4 cm (1.6 in) Requires a varied diet including fruit flies[40][41]
Marbled hatchetfish Carnegiella strigata   5 cm (2.0 in) Requires a varied diet including fruit flies[41][40]
Black-winged hatchetfish Carnegiella marthae   4 cm (1.6 in)
Pygmy hatchetfish Carnegiella myersi 2.2 cm (0.87 in)
Pencil fishes
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Golden pencilfish Nannostomus beckfordi   6 cm (2.4 in)
Hockeystick pencilfish Nannostomus eques   3.5 cm (1.4 in)
Barred pencilfish Nannostomus espei   3 cm (1.2 in)
Dwarf pencilfish Nannostomus marginatus   2.5 cm (0.98 in)
Coral-red pencilfish Nannostomus mortenthaleri   3 cm (1.2 in)
Nannostomus nigrotaeniatus   3 cm (1.2 in)
Three-lined pencilfish Nannostomus trifasciatus   3 cm (1.2 in)
One-lined Pencilfish Nannostomus unifasciatus   4 cm (1.6 in)
Serrasalminae (pacus, piranhas, and silver dollars)
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Silver dollar Metynnis argenteus   15 cm (5.9 in) The name "silver dollar" may also refer to Metynnis hypsauchen, Metynnis maculatus, or other related fishes.
Schreitmuller's metynnis Metynnis hypsauchen   14 cm (5.5 in)
Spotted silver dollar Metynnis lippincottianus   13 cm (5.1 in)
Red-bellied pacu Colossoma bidens   120 cm (47 in) 78–82 °F (26–28 °C)
Red piranha Pygocentrus nattereri   33 cm (13 in)
Redeye piranha, black piranha Serrasalmus rhombeus   41.5 cm (16.3 in)
Wimple piranha Catoprion mento   15 cm (5.9 in)
Mylossoma aureum   30 cm (12 in)
Disk tetra Myleus schomburgkii   40 cm (16 in) 23 °C to 27 °C 5.0–7.0
Other Characins
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
African pike characin Hepsetus odoe   44 cm (17 in)
Goliath tigerfish Hydrocynus goliath   133 cm (52 in)
Spotted pike-characin Boulengerella maculata   32 cm (13 in)
Hujeta gar Ctenolucius hujeta   25 cm (9.8 in)
Slender hemiodus Hemiodus gracilis   16 cm (6.3 in)
Kissing prochilodus, flagtail Prochilodus Semaprochilodus insignis   27.5 cm (10.8 in)
Marbled headstander Abramites hypselonotus   14 cm (5.5 in)[42]
Banded leporinus Leporinus fasciatus   27 cm (11 in)
Striped headstander Anostomus anostomus   16 cm (6.3 in)
Synaptolaemus latofasciatus 11 cm (4.3 in)
Siver distichodus Distichodus affinis 20 cm (7.9 in)
Six-banded distichodus Distichodus sexfasciatus   75 cm (30 in)
Neolebias ansorgii 3.5 cm (1.4 in)
Payara Hydrolycus scomberoides   117 cm (46 in)
Pink-tail chalceus Chalceus macrolepidotus   25 cm (9.8 in)
Red wolf fish Erythrinus erythrinus   20 cm (7.9 in)
Red tail barracuda Acestrorhynchus falcatus   30 cm (12 in)
Spotted headstander Chilodus punctatus   8 cm (3.1 in)

Cichlids

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Lake Malawi cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Sunshine peacock cichlid Aulonocara baenschi   13 cm (5.1 in)
Red shoulder peacock Aulonocara hansbaenschi   8.5 cm (3.3 in)
Eureka red peacock Aulonocara jacobfreibergi   15 cm (5.9 in)
Aulonocara chizumulu Aulonocara korneliae 8 cm (3.1 in)
Pale Usisya aulonocara Aulonocara steveni   9 cm (3.5 in)
Flavescent peacock Aulonocara stuartgranti   12 cm (4.7 in)
Spilo Champsochromis spilorhynchus 40 cm (16 in)
Copadichromis azureus   14.5 cm (5.7 in)
Red fin hap Copadichromis borleyi   14 cm (5.5 in)
Blue dolphin cichlid, lumphead cichlid Cyrtocara moorii   25 cm (9.8 in)
Afra cichlid, dogtooth cichild Cynotilapia afra   10 cm (3.9 in)
Malawi eyebiter Dimidiochromis compressiceps   23 cm (9.1 in)
Rusty cichlid, lavender cichild Iodotropheus sprengerae   10 cm (3.9 in)
Electric yellow cichlid Labidochromis caeruleus   20 cm (7.9 in)
Fuelleborn's cichlid, Blue mbuna Labeotropheus fuelleborni   18 cm (7.1 in)
Scrapermouth mbuna Labeotropheus trewavasae   12 cm (4.7 in)
Hongi, Red-top kimpumpa Labidochromis sp. "Hongi"   13 cm (5.1 in)
Yellow Top Mbamba Labidochromis sp. "Mbamba Bay" 13 cm (5.1 in)
Aurora Maylandia aurora 9 cm (3.5 in)
Cobalt blue cichlid, cobalt zebra cichlid Maylandia callainos   10 cm (3.9 in)
Red zebra cichlid Maylandia estherae   8 cm (3.1 in)
Kenyi cichlid Maylandia lombardoi   13 cm (5.1 in)
Zebra mbuna Maylandia zebra   11 cm (4.3 in)
Auratus cichlid, Malawi golden cichlid Melanochromis auratus   10 cm (3.9 in)
Chipokee cichlid Melanochromis chipokae 12 cm (4.7 in)
Blue johanni cichlid, Maingano Melanochromis cyaneorhabdos   10 cm (3.9 in)
Pearl of Likoma Melanochromis joanjohnsonae   10 cm (3.9 in)
Fusco Nimbochromis fuscotaeniatus   25 cm (9.8 in)
Livingston's cichlid Nimbochromis livingstonii   25 cm (9.8 in)
Kaligono Nimbochromis polystigma   30 cm (12 in)
Venustus cichlid, giraffe cichild Nimbochromis venustus   25 cm (9.8 in)
Deep-water hap Placidochromis electra   12 cm (4.7 in)
Fenestratus Protomelas fenestratus   14 cm (5.5 in)
Red empress cichlid Protomelas taeniolatus   15 cm (5.9 in)
Yellow-tail acei Pseudotropheus acei   10 cm (3.9 in)
Bumblebee cichlid, hornet cichlid Pseudotropheus crabro   15 cm (5.9 in)
Dwarf Mbuna Pseudotropheus demasoni   10 cm (3.9 in)
Johanni cichlid Pseudotropheus johannii   10 cm (3.9 in)
Saulosi Pseudotropheus saulosi   7.5 cm (3.0 in)
Pindani Chindongo socolofi   7 cm (2.8 in)
Malawi barracuda Rhamphochromis macrophthalmus 30 cm (12 in)
Electric blue cichlid Sciaenochromis fryeri   11.5 cm (4.5 in)
Big-mouth hap Tyrannochromis macrostoma 38 cm (15 in)
Lake Tanganyika cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Calvus Altolamprologus calvus   14 cm (5.5 in)
Compressiceps Altolamprologus compressiceps   12 cm (4.7 in)
Benthochromis tricoti   16.5 cm (6.5 in)
Boulengerochromis microlepis   90 cm (35 in)
Callochromis pleurospilus 10 cm (3.9 in)
Chalinochromis brichardi   12 cm (4.7 in)
Cyathopharynx furcifer   21 cm (8.3 in)
Frontosa cichild Cyphotilapia frontosa   40 cm (16 in)
Frontosa cichild Cyphotilapia gibberosa   40 cm (16 in)
Herring cichlid, sardine cichlid Cyprichromis leptosoma   11 cm (4.3 in)
Descamp's strange-tooth cichlid Ectodus descampsii   10.5 cm (4.1 in)
Brown julie Julidochromis dickfeldi   11 cm (4.3 in)
Marlier's julie Julidochromis marlieri   15 cm (5.9 in) fem / 10 cm (3.9 in) male
Golden julie Julidochromis ornatus   8.5 cm (3.3 in)
Convict julie Julidochromis regani   15 cm (5.9 in) fem / 10 cm (3.9 in) male
Masked julie Julidochromis transcriptus   10 cm (3.9 in)
Lamprologus ocellatus   6 cm (2.4 in)
Lamprologus signatus 5.5 cm (2.2 in)
Neolamprologus brevis   6 cm (2.4 in)
Lyretail cichlid, fairy cichlid Neolamprologus brichardi   10 cm (3.9 in)
Lemon cichlid Neolamprologus leleupi   11.5 cm (4.5 in)
Neolamprologus multifasciatus   3.8 cm (1.5 in)
Neolamprologus similis   3.8 cm (1.5 in) A small shell-dwelling cichlid from Lake Tanganyika. Very similar to N. multifsciatus but similis has striping from the body continue to the head
Five-barred lamprologus Neolamprologus tretocephalus   15 cm (5.9 in)
Featherfin Ophthalmotilapia ventralis 15 cm (5.9 in)
Petrochromis trewavasae 20 cm (7.9 in)
Simochromis pleurospilus 10 cm (3.9 in)
Tropheus duboisi   13 cm (5.1 in)
Tropheus moorii   14 cm (5.5 in)
Tropheus polli   14 cm (5.5 in)
Variabilichromis moorii   10 cm (3.9 in)
Yellow sand cichlid Xenotilapia flavipinnis   9 cm (3.5 in)
Lake Victoria cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Allauad's haplo Astatoreochromis alluaudi   19 cm (7.5 in)
Haplochromis aeneocolor   7.5 cm (3.0 in)
Zebra obliquidens Haplochromis latifasciatus   11 cm (4.3 in)
Flameback Haplochromis nyererei   8 cm (3.1 in)
Haplochromis thereuterion 8 cm (3.1 in)
Hippo Point Salmon Ptyochromis sp. "Hippo Point Salmon" 14 cm (5.5 in)
Miscellaneous African cichlids (non-Rift Lake)
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
African butterfly cichlid Anomalochromis thomasi   5 cm (2.0 in)
Dwarf Egyptian mouthbrooder Pseudocrenilabrus multicolor   8 cm (3.1 in)
Guenther's mouthbrooder Chromidotilapia guentheri   10 cm (3.9 in)
Jewel cichlid, two-spotted jewel cichlid Rubricatochromis bimaculatus   14 cm (5.5 in)
Lifalili jewel cichlid, blood-red jewel cichlid Rubricatochromis lifalili   8 cm (3.1 in)
Ocellated kribensis Pelvicachromis subocellatus 5 cm (2.0 in)
Rainbow krib Pelvicachromis pulcher   11 cm (4.3 in)
Striped kribensis Pelvicachromis taeniatus   7 cm (2.8 in)
Yellow kribensis Wallaceochromis humilis 12.5 cm (4.9 in)
Lionhead cichlid Steatocranus casuarius   10 cm (3.9 in)
Nanochromis parilus 4.5 cm (1.8 in)
Central American cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Bay snook Petenia splendida   50 cm (20 in)
Blackbelt cichlid Vieja maculicauda   25 cm (9.8 in)
Convict cichlid Amatitlania nigrofasciata   10 cm (3.9 in)
Amatitlania myrnae 8 cm (3.1 in)
Firemouth cichlid Thorichthys meeki   17 cm (6.7 in)
Jack Dempsey cichlid Rocio octofasciata   25 cm (9.8 in)
Jaguar cichlid, managuense cichlid Parachromis managuensis   55 cm (22 in)
Mayan cichlid Mayaheros urophthalmus   39.5 cm (15.6 in)
Midas cichlid Amphilophus citrinellus   24.5 cm (9.6 in) commonly confused with red devil cichlids, but it is an entirely different species [43]
Nicaraguan cichlid, moga Hypsophrys nicaraguensis   20 cm (7.9 in)
Poor man's tropheus Neetroplus nematopus   14 cm (5.5 in)
Rainbow cichlid Herotilapia multispinosa   17 cm (6.7 in)
Red terror, guayas cichlid Mesoheros festae   25 cm (9.8 in)
Salvin's cichlid Trichromis salvini   22 cm (8.7 in)
Texas cichlid, Rio Grande cichlid Herichthys cyanoguttatus   30 cm (12 in)
T-bar cichlid Amatitlania sajica   9 cm (3.5 in)
Wolf cichlid Parachromis dovii   72 cm (28 in)
Yellowjacket cichlid Parachromis friedrichsthalii   28 cm (11 in)
False yellowjacket cichlid Parachromis motaguensis 30 cm (12 in)
South American cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Blue acara Andinoacara pulcher   16 cm (6.3 in)
Thread-finned acara Acarichthys heckelii   19.5 cm (7.7 in)
Angelfish Pterophyllum scalare   15 cm (5.9 in) In an enclosed tank habitat, the fish's territorial, aggressive nature is heightened, so don't house angelfish with shy species that are intimidated by pushy, boisterous fish.[44] 75–82 °F (25–28 °C)[44] 6.8 – 7[44]
Altum angelfish Pterophyllum altum   18 cm (7.1 in)
Spotted angelfish Pterophyllum leopoldi   10 cm (3.9 in)
Chocolate cichlid Hypselecara temporalis   15 cm (5.9 in)
Common discus, red discus Symphysodon discus   12 cm (4.7 in)
Blue discus, green discus Symphysodon aequifasciatus   14 cm (5.5 in)
Eartheater cichlid Geophagus altifrons   26.5 cm (10.4 in)
Demon eartheater Satanoperca jurupari   17 cm (6.7 in)
Threespot eartheater Satanoperca daemon 20 cm (7.9 in)
Flag cichlid Mesonauta festivus   12 cm (4.7 in)
Greenstreaked eartheater, cupid cichlid Biotodoma cupido   12 cm (4.7 in)
Green terror Andinoacara rivulatus   20 cm (7.9 in)
Oscar Astronotus ocellatus   45 cm (18 in) Many people that purchase these fish do not realize that the fish could grow to a foot long (30 cm) within a year. Due to their fast growth rate and large size as an adult, they are often kept in aquariums that are too small for them.[45] 72-80 °F (22-27 °C)[45] 6.0-7.5[45]
Butterfly peacock bass Cichla ocellaris   74 cm (29 in)
Orinoco peacock bass Cichla orinocensis   62 cm (24 in)
Speckled peacock bass, speckled pavon Cichla temensis   100 cm (39 in)
Pearl cichlid Geophagus brasiliensis   28 cm (11 in)
Severum Heros efasciatus   17 cm (6.7 in)
Uaru, waroo Uaru amphiacanthoides   25 cm (9.8 in) Also known as the Triangle Cichlid.
Zebra Pike Cichlid Crenicichla zebrina   26.5 cm (10.4 in)
Dwarf cichlids (apistogrammas, rams and others)
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Agassiz's dwarf cichlid Apistogramma agassizii   4 cm (1.6 in)
Umbrella cichlid Apistogramma borellii   4 cm (1.6 in)
Cockatoo cichlid Apistogramma cacatuoides   5 cm (2.0 in)
Apistogramma nijsseni   4 cm (1.6 in) 24-28 °C 5.0-6.5 0-72 ppm
Three-striped dwarf ichlid Apistogramma trifasciata   4 cm (1.6 in)
Two-striped dwarf cichlid, banded dwarf cichlid Apistogramma bitaeniata   7.5 cm (3.0 in)
Keyhole cichlid Cleithracara maronii   7 cm (2.8 in)
Lyretail checkerboard cichlid, chessboard cichlid Dicrossus filamentosus   4 cm (1.6 in)
Zebra acara Ivanacara adoketa   5 cm (2.0 in)
Dwarf flag cichlid Laetacara curviceps   4.5 cm (1.8 in)
Blue ram,

German ram, ram cichlid German blue ram

Mikrogeophagus ramirezi   3.5 cm (1.4 in) [46] These small and colorful fish require precise water parameters, and if you don't meet those parameters, your fish could be severely impacted.[46] 10 U.S. gal (38 L)[46] 78 - 85 F (25.5 - 29.4 C)[46] 6.0 – 7.5[46]
Bolivian ram Mikrogeophagus altispinosus   5.5 cm (2.2 in)
Goldeneye cichlid Nannacara anomala   6 cm (2.4 in)
Other cichlids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Canara pearlspot Etroplus canarensis   11.5 cm (4.5 in)
Green chromide Etroplus suratensis   40 cm (16 in)
Orange chromide Pseudetroplus maculatus   9.5 cm (3.7 in)
Pinstripe damba Paretroplus menarambo   17 cm (6.7 in)
Blood parrot cichlid (Amphilophus citrinellus × Vieja melanurus)   Not considered a separate species of cichlid but a hybrid.[47]
Flowerhorn cichlid Cichlasoma sp.   25 cm (9.8 in) Not considered a separate species of cichlid but a hybrid.[47]

Cyprinids

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Barbs
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
African banded barb Enteromius fasciolatus   6 cm (2.4 in)
African butterfly barb Enteromius hulstaerti 3.5 cm (1.4 in)
Jae barb Enteromius jae   4 cm (1.6 in)
Arulius barb Dawkinsia arulius   12 cm (4.7 in) 66 °F to 77 °F (19°-25 °C) 6 – 8
Bigspot barb, Duncker's barb Barbodes dunckeri   13 cm (5.1 in) 72 - 85 °F (22 - 29 °C) 6 - 7
Black ruby barb Pethia nigrofasciatus   6.5 cm (2.6 in)
Cherry barb Puntius titteya   4.8 cm (1.9 in)
Denison's barb, red line torpedo barb Sahyadria denisonii   15 cm (5.9 in)
Drape fin barb Oreichthys crenuchoides   4.5 cm (1.8 in)
Gold barb Barbodes semifasciolatus   8 cm (3.1 in)
Golden barb Pethia gelius   5 cm (2.0 in)
Odessa barb Pethia padamya   8 cm (3.1 in)
Melon barb Haludaria fasciata   15 cm (5.9 in)
Mascara Barb Dawkinsia assimilis   12 cm (4.7 in) 66 °F to 77 °F (19°-25 °C) 6 – 8
Dawkinsia rohani   12 cm (4.7 in) 66 °F to 77 °F (19°-25 °C) 6 – 8
Dawkinsia tambraparniei   12 cm (4.7 in) 66 °F to 77 °F (19°-25 °C) 6 – 8
Narayan barb Pethia setnai 6 cm (2.4 in)
Rosy barb Pethia conchonius   13 cm (5.1 in)
Sawbwa barb Sawbwa resplendens   3 cm (1.2 in)
Tic-tac-toe barb Pethia stoliczkana   5 cm (2.0 in)
Spanner barb, t-barb Barbodes lateristriga   20 cm (7.9 in)
Fiveband barb, pentazona barb Desmopuntius hexazona   5 cm (2.0 in)
Snakeskin barb Desmopuntius rhomboocellatus   5 cm (2.0 in)
Eirmotus octozona 3.6 cm (1.4 in)
Checker barb Oliotius oligolepis   5 cm (2.0 in)
Tiger barb, sumatra barb Puntigrus tetrazona   7.5 cm (3.0 in) Keep in shoals of 8 or 10 to prevent aggression[48]
Other cyprinids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Tinfoil barb Barbonymus schwanenfeldii   36 cm (14 in)
Giant sword minnow Macrochirichthys macrochirus   100 cm (39 in)
Hampala barb Hampala macrolepidota   70 cm (28 in)
Mad barb Leptobarbus hoevenii   100 cm (39 in)
Bala shark Balantiocheilus melanopterus   40 cm (16 in) Grows large, needs lots of swimming room and is a schooling fish so a 125-gallon would be good for 3-4[49]
Black shark Labeo chrysophekadion   90 cm (35 in)
Apollo Shark Luciosoma setigerum   22 cm (8.7 in)
Siamese algae eater, fringe barb Crossocheilus langei   16 cm (6.3 in) Many other fish in the order Cypriniformes are also sold under this name. Very likely to jump out of the aquarium especially after reaching adult size. Very useful for getting rid of algae when it is young but prefer fish food upon reaching adulthood.[50]
Cyclocheilichthys janthochir 20 cm (7.9 in)
Flying fox (fish) Epalzeorhynchos kalopterus   16 cm (6.3 in)
Red-tailed black shark Epalzeorhynchos bicolor   13 cm (5.1 in)
Rainbow shark Epalzeorhynchos frenatum   15 cm (5.9 in)
Cambodian log sucker, false Siamese algae eater Ceratogarra cambodgiensis   24 cm (9.4 in)
Jullien's golden carp Probarbus jullieni   150 cm (59 in)
Panda garra Garra flavatra   6 cm (2.4 in)
Chinese algae eater Gyrinocheilus aymonieri   28 cm (11 in) This species may be sold under a variety of common names, including Siamese algae eater, Chinese algae eater, golden algae eater, or sucking loach. A gold colored form also exists.
Rasboras
Common name Scientific name Image Size Tank size Tank size Temperature range pH range Water Hardness
Harlequin rasbora Trigonostigma heteromorpha   5 cm (2.0 in) Also known as Harlequin tetra or Harlequin barb.
Glowlight rasbora Trigonostigma hengeli   5 cm (2.0 in)
Red-striped rasbora Trigonopoma pauciperforata   7.5 cm (3.0 in) 22–29 °C (72–84 °F)
Trigonopoma gracile   5.5 cm (2.2 in) 22–29 °C (72–84 °F)
Chili rasbora Boraras brigittae   2 cm (0.79 in) Should be kept in acidic water which can be difficult to maintain for most beginners in the aquarium hobby.[51] 5 U.S. gallons (19 L)[51] 20–28 °C (68–82 °F)[51] 5-6[51]
Dwarf rasbora Boraras maculatus   2.5 cm (0.98 in)
Phoenix rasbora Boraras merah   2 cm (0.79 in)
Eyespot rasbora Brevibora dorsiocellata   3.5 cm (1.4 in)
Kottelatia brittani   6 cm (2.4 in)
Rasbora cephalotaenia   13 cm (5.1 in)
Brilliant rasbora Rasbora einthovenii   9 cm (3.5 in)
Clown rasbora Rasbora kalochroma   10 cm (3.9 in)
Rasbora patrickyapi 6 cm (2.4 in)
Scissortail rasbora Rasbora trilineata   15 cm (5.9 in)
Volcano rasbora Rasbora vulcanus   5 cm (2.0 in)
Microdevario kubotai   2 cm (0.79 in)
Blackline rasbora, red-tailed rasbora Rasbora borapetensis   10 cm (3.9 in)
Espei rasbora Trigonostigma espei   5 cm (2.0 in)
Fire rasbora Rasboroides vaterifloris   4 cm (1.6 in)
Least rasbora Boraras urophthalmoides   1.6 cm (0.63 in)
Danios and other danionins
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Sundadanio axelrodi   2 cm (0.79 in)
Pearl danio Danio albolineatus   6.5 cm (2.6 in) subspecies:blue-redstripe danio, Kedah danio
Barred danio Devario pathirana   6 cm (2.4 in)
Celestial Pearl danio Danio margaritatus   2 cm (0.79 in)
Emerald dwarf danio Danio erythromicron   2 cm (0.79 in)
Fireline devario Devario sondhii 4.5 cm (1.8 in)
Giant danio Devario aequipinnatus   15 cm (5.9 in)
Devario auropurpureus   8 cm (3.1 in)
Glowlight danio Danio choprae   4 cm (1.6 in)
Gold-ring danio Danio tinwini   2 cm (0.79 in)
Malabar danio Devario malabaricus   11.5–14 cm (4.5–5.5 in)
Ocelot danio Danio kyathit   6 cm (2.4 in)
Spotted danio Danio nigrofasciatus   4 cm (1.6 in)
Turquoise danio Danio kerri   5 cm (2.0 in)
Zebra danio Danio rerio   5 cm (2.0 in)
Barilius ardens   10 cm (3.9 in)
Opsarius pulchellus   11 cm (4.3 in)
Cold-water cyprinids
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Goldfish Carassius auratus   15+ cm (6+ in) variations: Black Moor, Bubble Eye, Butterfly Tail, Calico, Celestial Eye, Comet, Common, Fantail, Lionchu, Lionhead, Oranda, Panda Moor, Pearlscale, Pompom, Ranchu, Ryukin, Shubunkin, Telescope eye, Veiltail.
Koi, common carp Cyprinus carpio   30+ cm (12+ in)
White Cloud Mountain minnow Tanichthys albonubes   3.8 cm (1.5 in)
Red shiner Cyprinella lutrensis   9 cm (3.5 in)
Rainbow shiner Notropis chrosomus   8 cm (3.1 in)
Chinese high fin banded shark Myxocyprinus asiaticus   60 cm (24 in)

Loaches

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Loaches
Common name Scientific name Image Size Remarks Tank size Temperature range pH range
Borneo hillstream loach Gastromyzon ctenocephalus   4.5 cm (1.8 in) Eats mainly algae. High oxygen level and water quality are greatly appreciated in addition to a strong current (but not needed as many sources claim)[52] 10 U.S. gal (38 L)[53] 18–25 °C (64–77 °F)[53] 6.5 – 8.0 pH[53]
Borneo hillstream loach Gastromyzon zebrinus 6 cm (2.4 in) See above[52] 10 U.S. gal (38 L)[53] 18–25 °C (64–77 °F)[53] 6.5 – 8.0 pH[53]
Clown loach Chromobotia macracanthus   30.5 cm (12.0 in)
Green tiger loach Syncrossus hymenophysa 21 cm (8.3 in)
Fire-eyed loach Barbucca diabolica 2.5 cm (0.98 in)
Fork-tailed loach Vaillantella maassi 12.5 cm (4.9 in)
Horseface loach Acantopsis dialuzona   20 cm (7.9 in)
Pangio anguillaris 12 cm (4.7 in)
Pangio cuneovirgata 6 cm (2.4 in)
Java loach Pangio oblonga   8 cm (3.1 in) 6.2 to 7.0
Pangio shelfordii 8 cm (3.1 in)
Kuhli loach, coolie loach Pangio semicincta   10 cm (3.9 in) The natural habitat of the kuhli loach is the sandy beds of slow-moving rivers and clean mountain streams. They are a social fish and are typically found in small clusters (they are not schooling fish but enjoy the company of their species), but are cautious and nocturnal by nature and swim near the bottom where they feed around obstacles. Kuhli loaches are scavengers, so they will eat anything that reaches the bottom.[citation needed] 75–86 °F (24–30 °C) 5.5 – 6.5
Saddle-back Loach Homaloptera orthogoniata   13 cm (5.1 in) The Saddleback Loach will thrive in an aquarium with a good amount of water flow and aeration, considerable amounts of hiding places formed by rocks or driftwood and smooth pebbles and stones to graze on.[54] 68 - 78 F (20 - 25.6 C)[54] 6 - 7.5[54]
Dwarf botia Ambastaia sidthimunki   5.5 cm (2.2 in) Formerly named Botia sidthimunki.
Bengal loach Botia dario   15 cm (5.9 in) Also known as the Queen loach.
Botia histrionica   12 cm (4.7 in)
Gangetic loach Botia rostrata 25 cm (9.8 in)
Polka-Dot Loach Botia kubotai   12 cm (4.7 in)
Yoyo loach Botia almorhae   15 cm (5.9 in)
Zebra loach Botia striata   9 cm (3.5 in)
Redtail loach Yasuhikotakia modesta   25 cm (9.8 in)
Skunk loach Yasuhikotakia morleti   10 cm (3.9 in) Formerly named Botia morleti
Yasuhikotakia splendida 10 cm (3.9 in)
Banded tiger loach Syncrossus helodes   30 cm (12 in)
Redfin tiger loach Syncrossus berdmorei   15 cm (5.9 in)
Golden zebra loach Sinibotia pulchra 10 cm (3.9 in)
Imperial flower loach Leptobotia elongata 50 cm (20 in)
Butterfly hillstream loach Beaufortia kweichowensis   8 cm (3.1 in) Eats mainly algae. High oxygen level and water quality are greatly appreciated in addition to a strong current (but not needed as many sources claim)[52]
Panda loach Yaoshania pachychilus 6 cm (2.4 in)
Tiger hillstream loach Sewellia lineolata   6 cm (2.4 in) Eats mainly algae. High oxygen level and water quality are greatly appreciated in addition to a strong current (but not needed as many sources claim)[52]
Rosy loach Physoschistura mango 3 cm (1.2 in)
Sumo loach Schistura balteata   8 cm (3.1 in)
Zodiac loach Mesonoemacheilus triangularis 6 cm (2.4 in)
Serpenticobitis octozona   5.5 cm (2.2 in)
Weather Loach[55] Misgurnus anguillicaudatus[56] 30 centimetres (12 in) Sensitive to changes in barometric pressure[57]

Live-bearers

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Guppies and mollies
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Guppy

Fancy Guppy

Poecilia reticulata   5 cm (2.0 in) Many color and tail pattern varieties exist. They generally need a ratio of 1 male to 2 females or more. All guppies and mollies are hardy fish that tolerate lower oxygen levels and temperatures than most aquarium fish, give birth to live young, and readily breed in home tanks.[58] can live in full sea water[59] 66 °F - 84 °F (19 °C - 29 °C) 7 - 8
Endler's livebearer Poecilia wingei   3.8 cm (1.5 in)
Black molly Poecilia sphenops   10 cm (3.9 in) Can live in full sea water[59]
Sailfin molly Poecilia latipinna   10 cm (3.9 in) Gold and silver varieties commonly found; also thrive in brackish water/ full sea water[59]
Yucatán molly, giant sailfin molly Poecilia velifera   15 cm (5.9 in)
Dalmatian molly hybrid   5 cm (2.0 in) The dalmatian molly is a hybrid color variation that can be generated by crossing some species of Poecilia, like P. sphenops and P. latipinna. The variety "Dalmatian" is spotted alike to a Dalmatian dog. Can live in full sea water[59]
Lyretail Molly hybrid   5 cm (2.0 in) Lyretail Mollies are available in all of these species, can be cross bred with any species of Molly. Can live in full sea water[59]
Platies and swordtails
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Southern platy Xiphophorus maculatus   6 cm (2.4 in)
Variable platy Xiphophorus variatus   6 cm (2.4 in)
Green swordtail Xiphophorus hellerii   14 cm (5.5 in)
Montezuma swordtail Xiphophorus montezumae   5.5 cm (2.2 in)
Other livebearers
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Largescale four-eyed fish Anableps anableps   30 cm (12 in)
Pike topminnow Belonesox belizanus   6 cm (2.4 in)
Redtail splitfin Xenotoca eiseni   6 cm (2.4 in)
Cuban lima Limia vittata   8 cm (3.1 in)
Knife livebearer Alfaro cultratus   7.5 cm (3.0 in)
Least killifish Heterandria formosa   3.5 cm (1.4 in)
Metallic livebearer Girardinus metallicus   5 cm (2.0 in)
Dwarf merry widow Phallichthys tico   2.5 cm (0.98 in)
Tanganyika killifish Lamprichthys tanganicanus   15 cm (5.9 in)
Norman's lampeye Poropanchax normani   4.5 cm (1.8 in)
Large finned lampeye Procatopus nototaenia 6 cm (2.4 in) 20-25 °C[60]
Variable lampeye Procatopus similis 6 cm (2.4 in)
Celebes halfbeak Nomorhamphus liemi   8 cm (3.1 in)
Wrestling halfbeak Dermogenys pusilla   7.5 cm (3.0 in)[61] Wrestling Halfbeaks are best kept in groups, composed of either a single male with several females, or, in more spacious quarters with ample visual barriers, larger mixed groups containing at least six males. 75-82 F (24-28 C) [61] 7 - 8[61]
Forest halfbeak Hemirhamphodon pogonognathus   10 cm (3.9 in)
Hemirhamphodon tengah 3.5 cm (1.4 in)

Killifish

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African killifishes
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Broken-line killifish Aphyosemion ogoense   5 cm (2.0 in)
Gabon killifish Aphyosemion gabunense 5 cm (2.0 in)
Gabon jewelfish Aphyosemion cyanostictum 6.5 cm (2.6 in)
Lyretail panchax Aphyosemion australe   6 cm (2.4 in)
Red-striped killifish Aphyosemion striatum   6 cm (2.4 in)
Two-striped killifish Aphyosemion bitaeniatum 5 cm (2.0 in)
Twostripe lyretail Aphyosemion bivittatum   5 cm (2.0 in)
Blue lyretail Fundulopanchax gardneri   5 cm (2.0 in)
Blue gularis Fundulopanchax sjostedti   13 cm (5.1 in)
Fundulopanchax scheeli   6 cm (2.4 in)
Clown Killifish, rocket killifish Epiplatys annulatus   3.5 cm (1.4 in) 50 L (13 U.S. gal) 25–27 °C (77–81 °F) 6 - 7 pH
Redchin panchax Epiplatys dageti   6 cm (2.4 in)
Bluefin Notho, Rachow's Notho, Rainbow Notho Nothobranchius rachovii   6 cm (2.4 in)
Redtail notho Nothobranchius guentheri 3.5 cm (1.4 in)
Nothobranchius eggersi   5 cm (2.0 in)
Nothobranchius korthausae   5 cm (2.0 in)
Nothobranchius palmqvisti   5 cm (2.0 in)
Other killifishes
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Blue panchax Aplocheilus armatus   9 cm (3.5 in)
Ceylon killifish Aplocheilus dayi 9 cm (3.5 in)
Striped panchax, Golden Wonder Aplocheilus lineatus   10 cm (3.9 in)
Madagascar panchax Pachypanchax sakaramyi   9 cm (3.5 in)
Playfair's panchax Pachypanchax playfairii   10 cm (3.9 in)
Powder-blue Panchax Pachypanchax omalonotus   9 cm (3.5 in)
American flagfish Jordanella floridae   6 cm (2.4 in) Native to SE United States
Arabian toothcarp Aphaniops dispar   7 cm (2.8 in)
Argentine pearl Austrolebias nigripinnis   7 cm (2.8 in)
Laimosemion xiphidius   5.5 cm (2.2 in)
Lyrefin pearlfish Simpsonichthys boitonei   4.5 cm (1.8 in)
Saberfin killie Terranatos dolichopterus 4 cm (1.6 in)
Medaka Oryzias latipes   4 cm (1.6 in)
Javanese ricefish Oryzias javanicus   3.5 cm (1.4 in)
Daisy's Ricefish Oryzias woworae   2.5–3 cm (0.98–1.18 in)

Labyrinth fish

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Gourami
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Ceylonese combtail Belontia signata   18 cm (7.1 in)
Siamese fighting fish (sometimes Betta, esp. US) Betta splendens   7.5 cm (3.0 in) Betta is the name of the genus that includes more than 60 species other than the Siamese fighting fish. 5 gal [62] 72–82 °F (22–28 °C)[62] 6.5-7.5[62]
Emerald betta Betta smaragdina   7 cm (2.8 in)
Spotfin betta Betta macrostoma 10 cm (3.9 in)
Frail gourami Ctenops nobilis 4 cm (1.6 in)
Black paradisefish Macropodus spechti   8 cm (3.1 in)
Paradise fish Macropodus opercularis   7.5 cm (3.0 in)
Round tail paradisefish Macropodus ocellatus   8.5 cm (3.3 in)
Ornate paradisefish Malpulutta kretseri   4 cm (1.6 in)
Eyespot gourami Parasphaerichthys ocellatus   5 cm (2.0 in)
Brown Spike-tailed paradisefish Pseudosphromenus dayi   4 cm (1.6 in)
Honey gourami Trichogaster chuna   5.5 cm (2.2 in)
Dwarf gourami Trichogaster lalius   5 cm (2.0 in) Suitable for small to mid-sized aquariums but cannot compete with more aggressive fish and males kept together may fight. Several color varieties available. Massive inbreeding has led to high rates of Dwarf gourami iridovirus (DGIV) in pet store fish.[63] 72 – 82 °F (22 – 27 °C) [64] 6 - 7.5[64]
Thick-lipped gourami Trichogaster labiosa   9 cm (3.5 in)
Moonlight gourami Trichopodus microlepis   15 cm (5.9 in)
Snakeskin gourami Trichopodus pectoralis   20 cm (7.9 in)
Pygmy gourami, Sparkling gourami Trichopsis pumila   3.8 cm (1.5 in)
Malay combtail Belontia hasselti   20 cm (7.9 in)
Betta albimarginata   3 cm (1.2 in)
Betta brownorum 3 cm (1.2 in)
Betta burdigala   3.5 cm (1.4 in)
Betta channoides 3 cm (1.2 in)
Scarlet betta Betta coccina   4 cm (1.6 in)
Betta foerschi 5 cm (2.0 in)
Betta hendra 4 cm (1.6 in)
Crescent betta Betta imbellis   6 cm (2.4 in)
Betta mandor 5 cm (2.0 in)
Betta miniopinna 3.5 cm (1.4 in)
Betta persephone   3.5 cm (1.4 in)
Toba betta Betta rubra 4 cm (1.6 in)
Betta rutilans 3.5 cm (1.4 in)
Betta uberis 3.5 cm (1.4 in)
Giant pikehead Luciocephalus pulcher   20 cm (7.9 in)
Peppermint pikehead Luciocephalus aura 10 cm (3.9 in)
Parosphromenus anjunganensis 3 cm (1.2 in)
Parosphromenus bintan 3 cm (1.2 in)
Parosphromenus deissneri 3 cm (1.2 in)
Parosphromenus filamentosus 3 cm (1.2 in)
Parosphromenus linkei 3 cm (1.2 in)
Parosphromenus opallios 3 cm (1.2 in)
Parosphromenus ornaticauda 3 cm (1.2 in)
Parosphromenus phoenicurus   3 cm (1.2 in)
Parosphromenus quindecim 3 cm (1.2 in)
Chocolate gourami Sphaerichthys osphromenoides   6 cm (2.4 in)
Crossband chocolate gourami Sphaerichthys selatanensis 4 cm (1.6 in)
Samurai gourami Sphaerichthys vaillanti   4 cm (1.6 in)
Pearl gourami Trichopodus leerii   11.5 cm (4.5 in)
Three spot gourami Trichopodus trichopterus   10 cm (3.9 in)
Croaking gourami Trichopsis vittata   6.5 cm (2.6 in)
Giant gourami Osphronemus goramy   60 cm (24 in)
Other labyrinth fishes
Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Kissing gourami Helostoma temminckii   15 cm (5.9 in)
Climbing perch Anabas testudineus   20 cm (7.9 in)
Leopard bush fish Ctenopoma acutirostre   15 cm (5.9 in)
Mottled ctenopoma Ctenopoma weeksii   12 cm (4.7 in)
Tailspot ctenopoma Ctenopoma kingsleyae   20 cm (7.9 in)
Ornate ctenopoma Microctenopoma ansorgii   5 cm (2.0 in)
Blue badis Badis badis   7 cm (2.8 in)
Scarlet badis Dario dario   1.5 cm (0.59 in)
Black tiger dario Dario tigris   2.5 cm (0.98 in)
Bornean leaffish Nandus nebulosus   12 cm (4.7 in)
Malayan leaffish Pristolepis fasciata   20 cm (7.9 in)
Forest snakehead Channa lucius   40 cm (16 in) Illegal to possess live in the USA without a permit[65]
Dwarf snakehead Channa gachua   20 cm (7.9 in) Illegal to possess live in the USA without a permit[65]
Emperor snakehead Channa marulioides 65 cm (26 in) Illegal to possess live in the USA without a permit[65]
Giant snakehead Channa micropeltes   130 cm (51 in) Illegal to possess live in the USA without a permit[65]
Ocellated snakehead Channa pleurophthalma   35 cm (14 in) Illegal to possess live in the USA without a permit[65]
Orange-spotted snakehead Channa aurantimaculata   36 cm (14 in)
Barca snakehead Channa barca 105 cm (41 in)
Rainbow snakehead Channa bleheri   14.5 cm (5.7 in)
African snakehead Parachanna obscura   50 cm (20 in) Illegal to possess live in the USA without a permit[65]

Rainbowfish

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Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Bleher's rainbowfish Chilatherina bleheri 12 cm (4.7 in)
Red rainbowfish Glossolepis incisus   9–13 cm (3.5–5.1 in) Almost all rainbowfish species are bred in captivity and wild populations may be protected.[66]
Threadfin rainbowfish Iriatherina werneri   3–4 cm (1.2–1.6 in)
New Guinea rainbowfish Melanotaenia affinis 13 cm (5.1 in)
Boeseman's rainbowfish Melanotaenia boesemani   10–13 cm (3.9–5.1 in)
Lake Kurumoi rainbowfish Melanotaenia parva   7.5–8 cm (3.0–3.1 in)
Neon rainbowfish Melanotaenia praecox   6–7.5 cm (2.4–3.0 in)
Lake Wanam rainbowfish Glossolepis wanamensis   9 cm (3.5 in)
Western rainbowfish Melanotaenia australis   11 cm (4.3 in)
Duboulayi's rainbowfish Melanotaenia duboulayi   13–15 cm (5.1–5.9 in) a.k.a. Crimson-Spotted rainbowfish
Australian rainbowfish Melanotaenia fluviatilis   13–15 cm (5.1–5.9 in)
Lake Tebera rainbowfish Melanotaenia herbertaxelrodi   9 cm (3.5 in)
Lake Kutubu rainbowfish Melanotaenia lacustris   12 cm (4.7 in)
Parkinson's rainbowfish Melanotaenia parkinsoni   11 cm (4.3 in)
Eastern rainbowfish Melanotaenia splendida splendida   13–15 cm (5.1–5.9 in)
Banded rainbowfish Melanotaenia trifasciata   13 cm (5.1 in)
Celebes rainbow Marosatherina ladigesi   8 cm (3.1 in)
Spotted blue-eye Pseudomugil gertrudae   3–4 cm (1.2–1.6 in)
Red neon blue-eye Pseudomugil luminatus 3–3.5 cm (1.2–1.4 in)
Delicate blue-eye Pseudomugil tenellus 4–5.5 cm (1.6–2.2 in)
Forktail blue-eye Pseudomugil furcatus   4–5 cm (1.6–2.0 in) These fish need a larger aquarium than their size suggests. Though they only grow to a length of about 2 inches, they are happiest in groups of 8 – 10 or more, and they appreciate lots of swimming space.[67] 75 - 79 °F (24 - 26 °C) [67] 6.5 - 8.0[67]
Neon blue-eye Pseudomugil cyanodorsalis 3.5 cm (1.4 in)
Pacific blue-eye Pseudomugil signifer   3.5–7 cm (1.4–2.8 in)
Madagascar rainbowfish Bedotia madagascariensis   7.5–8 cm (3.0–3.1 in)

Gobies and sleepers

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Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
Bumblebee goby Brachygobius doriae   4 cm (1.6 in)
Mugilogobius rexi 3 cm (1.2 in)
Knight goby Stigmatogobius sadanundio   9 cm (3.5 in)
Barred mudskipper Periophthalmus argentilineatus   19 cm (7.5 in)
Stiphodon annieae 2.5 cm (0.98 in)
Rainbow stiphodon Stiphodon ornatus   5 cm (2.0 in)
Cobalt blue goby Stiphodon semoni 4–5 cm (1.6–2.0 in)
Sicyopus exallisquamulus 5 cm (2.0 in)
Sicyopus zosterophorus   4.5 cm (1.8 in)
Bearded worm goby Taenioides cirratus   30 cm (12 in)
Banded mogurnda Mogurnda cingulata 13 cm (5.1 in)
Tropical carp-gudgeon Hypseleotris cyprinoides   8 cm (3.1 in)
Crazy fish Butis butis   15 cm (5.9 in)
Marbled goby Oxyeleotris marmorata   30–65 cm (12–26 in)
Rhinogobius duospilus   6 cm (2.4 in)
Stiphodon percnopterygionus   4 cm (1.6 in)
Golden-red stiphodon Stiphodon rutilaureus 4.5 cm (1.8 in)
Atlantic mudskipper Periophthalmus barbarus   16 cm (6.3 in)
Desert goby Chlamydogobius eremius   6 cm (2.4 in)
Dragon goby, Violet goby Gobioides broussonnetii   55 cm (22 in)
Empire gudgeon Hypseleotris compressa   12 cm (4.7 in)
Purple sleeper gudgeon Mogurnda mogurnda   20 cm (7.9 in)
Peacock gudgeon, Peacock goby Tateurndina ocellicauda   7.5 cm (3.0 in) A little territorial with its own kind but is suitable for many communities of small, peaceful fish. Ideal tankmates are other species from Papua New Guinea, such as Popondetta sp. rainbowfishes; but tetras, rasboras, Corydoras cats and virtually any other small peaceful species are also suitable.[68] 40 L (11 U.S. gal)[68] 22–26 °C (72–79 °F)[68] 6.5 7.5 pH[68]
Striped sleeper goby Dormitator maculatus   70 cm (28 in)

Other fish

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Common name Scientific name Image Size Remarks Tank size Temperature range pH range Water Hardness
West African lungfish Protopterus annectens   100 cm (39 in)
Spotted lungfish Protopterus dolloi   130 cm (51 in)
South American lungfish Lepidosiren paradoxa   125 cm (49 in)
Australian lungfish Neoceratodus forsteri   150 cm (59 in)
Ocellate river stingray Potamotrygon motoro   50 cm (19.5 in) has venomous barbs that contain a protein based poison, if you happen to accidentally get stung you should submerge the wound in as hot as water as you can as this breaks down the protein[69]
Black devil stingray Potamotrygon leopoldi   111 cm (43.5 in) see above
Marbled whipray Fluvitrygon oxyrhynchus   36 cm (14 in) see above
Gray bichir, Senegal bichir, or dinosaur bichir Polypterus senegalus   70.0 cm (27.6 in) maximum length[70]40.0 centimetres (15.7 in) in captivity[71] Peaceful but preys on anything smaller than its mouth[72] 25–28 °C (77–82 °F)[70] 6.0-8.0[70]
Ornate bichir Polypterus ornatipinnis   60 cm (24 in) maximum length[73] Peaceful but preys on anything smaller than its mouth[72] 26–28 °C (79–82 °F)[73] 6.0–8.0
Retropinnis bichir Polypterus retropinnis 34.0 cm (13.4 in)[74] Peaceful but preys on anything smaller than its mouth[72] 26–28 °C (79–82 °F) 6.5–7.5
Barred bichir Polypterus delhezi   35 cm (14 in) Peaceful but preys on anything smaller than its mouth[72] 24–30 °C (75–86 °F) 6-8
Saddled bichir Polypterus endlicherii   63 cm (25 in)[75] Peaceful but preys on anything smaller than its mouth[72] 22–27 °C (72–81 °F) 6-8
Reedfish Erpetoichthys calabaricus   31.4 cm (12.4 in) at maturity, 37 centimetres (15 in) maximum length[76] 22–28 °C (72–82 °F)[76] 6.0–8.0[76]
Sterlet Acipenser ruthenus   125 cm (49 in)
Shovelnose Sturgeon Scaphirhynchus platorynchus  
American paddlefish Polyodon spathula   150 cm (59 in)
Bowfin Amia calva   109 cm (43 in)
Spotted Gar Lepisosteus oculatus   70 cm (27.5 in)
Longnose Gar Lepisosteus osseus   200 cm (78.5 in)
Florida Gar Lepisosteus platyrhincus   70 cm (27.5 in)
Alligator Gar Atractosteus spatula   300 cm (118 in)
Cuban Gar Atractosteus tristoechus   200 cm (78.5 in)
Tropical Gar Atractosteus tropicus   150 cm (59 in)
Blunt-jawed elephantnose Campylomormyrus tamandua   40 cm (16 in)
Peters' elephant nose Gnathonemus petersii   22.5 cm (8.9 in)
African butterflyfish Pantodon buchholzi   12 cm (4.7 in)
Aba aba Gymnarchus niloticus   120 cm (47 in)
Reticulated knifefish Papyrocranus afer   80 cm (31 in)
African brown knifefish Xenomystus nigri   30 cm (12 in)
Royal knifefish Chitala blanci   120 cm (47 in)
Clown knifefish Chitala ornata   100 cm (39 in)
Asian arowana Scleropages formosus   90 cm (35 in) Preys on anything smaller than its mouth.[77]
Gulf saratoga Scleropages jardinii   90 cm (35 in)
Southern saratoga Scleropages leichardti   90 cm (35 in)
Silver arowana Osteoglossum bicirrhosum   90 cm (35 in) Preys on anything smaller than its mouth.[77]
Black arowana Osteoglossum ferreirai   90 cm (35 in) Preys on anything smaller than its mouth.[77]
Pirarucu Arapaima gigas   200 cm (79 in)
African arowana Heterotis niloticus   100 cm (39 in)
Freshwater moray Gymnothorax polyuranodon 150 cm (59 in)
Hingemouth Phractolaemus ansorgii 25 cm (9.8 in)
Black ghost knifefish Apteronotus albifrons   50 cm (19.5 in) Not to be confused with the featherback "knifefish" of the Bonytongue group (see above) 23-28C (73-82F) 6.0-8.0
Brown ghost knifefish Apteronotus leptorhynchus 27 cm (10.5 in)
Glass knifefish Eigenmannia virescens   44 cm (17.5 in)
Electric eel Electrophorus electricus   200 cm (78.5 in)
Northern pike Esox lucius   150 cm (59 in)
Humphead glassfish Parambassis pulcinella   8 cm (3.1 in)
Indian glassy fish Parambassis ranga   8 cm (3.1 in)
Glassfish

Glass perch

Gymnochanda filamentosa 3.8 cm (1.5 in) 24-28 °C[78]
Mouth almighty Glossamia aprion   3.8 cm (1.5 in)
Amazon leaffish Monocirrhus polyacanthus   8 cm (3.1 in)
African leaffish Polycentropsis abbreviata   8 cm (3.1 in)
Nile perch Lates niloticus   200 cm (79 in)
Indonesian tigerfish Datnioides microlepis   55 cm (22 in)
Silver tigerfish Datnioides polota   30 cm (12 in)
New Guinea tigerfish Datnioides campbelli   32 cm (13 in)
Banded archerfish Toxotes jaculatrix   30 cm (12 in)
Seven-spot archerfish Toxotes chatareus   40 cm (16 in)
Spotted scat Scatophagus argus   20 cm (7.9 in)
African scat Scatophagus tetracanthus   30 cm (12 in)
Striped scat, spotbanded scat Selenotoca multifasciata 40 cm (15.5 in)
Silver moony Monodactylus argenteus   27 cm (10.5 in)
African moony Monodactylus sebae   25 cm (10 in)
Freshwater pipefish Doryichthys martensii   15 cm (5.9 in)
African freshwater pipefish Enneacampus ansorgii 14 cm (5.5 in)
Zebra blenny Omobranchus zebra 6 cm (2.4 in)
Fire eel Mastacembelus erythrotaenia   100 cm (39 in)
Tire track eel Mastacembelus armatus   90 cm (35 in)
Peacock eel Macrognathus siamensis   30 cm (12 in) They require clean water and are vulnerable to parasites, fungal diseases, and the copper-based drugs used to treat these conditions.[79] 73-82 °F (23-28 °C)[80] 6.0-8.0[80]
Zebra spiny eel Macrognathus zebrinus 46 cm (18 in)
Half-banded spiny eel Macrognathus circumcinctus 20 cm (7.9 in)
Lesser spiny eel Macrognathus tapirus   38 cm (15 in)
Freshwater needlefish Xenentodon cancila   35 cm (14 in)
Grunting toadfish Allenbatrachus grunniens   30 cm (12 in)
Leaf goblinfish Neovespicula depressifrons   10 cm (4 in)
Freshwater sole Achiroides melanorhynchus   14 cm (5.5 in)
Golden puffer Auriglobus modestus 10 cm (3.9 in) Pufferfish inflating out of water can cause death.[81]
Green spotted puffer Dichotomyctere nigroviridis   15 cm (5.9 in) See above
Figure 8 pufferfish Dichotomyctere ocellatus   6 cm (2.4 in) See above
Humpback Puffer Pao palembangensis 20 cm (7.9 in) See above
Red-tail dwarf puffer Carinotetraodon irrubesco   4.5 cm (1.8 in) See above
Arrowhead puffer Pao suvattii 15 cm (5.9 in)
Hairy pufferfish Pao baileyi   12 cm (4.7 in)
Dwarf pufferfish Carinotetraodon travancoricus   2.9 cm (1.1 in) aka Pea Puffer
Fahaka puffer Tetraodon lineatus   43 cm (17 in)
Mbu puffer Tetraodon mbu   75 cm (30 in) This fish also occurs in estuaries. largest freshwater pufferfish, they are very peaceful with most fish except, other Mbu pufferfish, other fish that will harass them. see above[82]
Congo pufferfish Tetraodon miurus   15 cm (5.9 in) As it is an ambush pufferfish it is best to house it alone as it will attack tank mates. See above.[83]
Tetraodon schoutedeni 9 cm (3.5 in)
Amazon puffer Colomesus asellus   13 cm (5 in)
Everglades pygmy sunfish Elassoma evergladei   3 cm (1.2 in)
Blackbanded sunfish Enneacanthus chaetodon   10 cm (3.9 in)
Rainbow darter Etheostoma caeruleum   8 cm (3.1 in)

See also

edit

Sources

edit
 
Wikimedia Commons has media related to Freshwater aquarium fish.
  • Alderton, D. (2005). Encyclopedia of Aquarium and Pond Fish. Dorling Kindersley.
  • Jennings, G. (2006). 500 Aquarium Fish: A Visual Reference to the Most Popular Species. Firefly Books.
  • Sakurai, A.; Sakamoto, Y.; Mori, F. (1993). Aquarium Fish of the World: The Comprehensive Guide to 650 Species. Chronicle Books.

References

edit
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