Neon tetra
Peaceful · Middle · easy care
- 1.6 in adult
- 10+ gal
- 70–79 °F
- pH 6 to 7.5
- groups of 6+
Fish for a 125 gallon tank
221 fish and 20 shrimp, snails or amphibians fit a 125 gallon tank as adults. A 125 gallon (6 feet long) is the minimum for an adult clown loach group, a common pleco or a black ghost knifefish.
A species fits when its adult group fits this size of tank. Together they still have to share water and temperament: check your mix in the stocking checker.
Betta
Semi-aggressive · Top · easy care
- 3 in adult
- 5+ gal
- 76–82 °F
- pH 6 to 7.5
- one male per tank
Guppy
Peaceful · Top · easy care
- 2.8 in adult
- 10+ gal
- 72–82 °F
- pH 7 to 8
- groups of 3+
Platy
Peaceful · Middle · easy care
- 2.5 in adult
- 10+ gal
- 70–80 °F
- pH 7 to 8.2
- groups of 3+
Bronze corydoras
Peaceful · Bottom · easy care
- 2.75 in adult
- 20+ gal
- 72–80 °F
- pH 6 to 8
- groups of 6+
Harlequin rasbora
Peaceful · Middle · easy care
- 2 in adult
- 10+ gal
- 72–81 °F
- pH 6 to 7.5
- groups of 8+
Angelfish
Semi-aggressive · Middle · moderate care
- 6 in adult
- 29+ gal
- 76–84 °F
- pH 6 to 7.5
- alone or pair
Zebra danio
Peaceful · Top · easy care
- 2 in adult
- 10+ gal
- 64–77 °F
- pH 6.5 to 8
- groups of 6+
Cardinal tetra
Peaceful · Middle · moderate care
- 1.2 in adult
- 20+ gal
- 73–81 °F
- pH 5 to 7
- groups of 8+
Ember tetra
Peaceful · Middle · easy care
- 1.2 in adult
- 10+ gal
- 73–84 °F
- pH 6 to 7.5
- groups of 8+
Molly
Peaceful · Middle · easy care
- 3.9 in adult
- 29+ gal
- 72–82 °F
- pH 7.5 to 8.5
- groups of 3+
Honey gourami
Peaceful · Top · easy care
- 2 in adult
- 10+ gal
- 72–82 °F
- pH 6 to 7.5
- alone or pair
Dwarf gourami
Peaceful · Top · moderate care
- 3.5 in adult
- 10+ gal
- 77–82 °F
- pH 6 to 7.5
- one male per tank
Otocinclus
Peaceful · Bottom · moderate care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Bristlenose pleco
Peaceful · Bottom · easy care
- 6 in adult
- 29+ gal
- 73–81 °F
- pH 6.5 to 7.5
- alone or pair
Kuhli loach
Peaceful · Bottom · easy care
- 4 in adult
- 20+ gal
- 75–82 °F
- pH 5.5 to 7
- groups of 5+
Panda corydoras
Peaceful · Bottom · easy care
- 2 in adult
- 15+ gal
- 68–77 °F
- pH 6 to 7.5
- groups of 6+
Fancy goldfish
Peaceful · All levels · easy care
- 8 in adult
- 20+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Chili rasbora
Peaceful · Middle · moderate care
- 0.8 in adult
- 5+ gal
- 72–82 °F
- pH 5 to 7
- groups of 8+
Celestial pearl danio
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–78 °F
- pH 6.5 to 7.5
- groups of 6+
White cloud mountain minnow
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 64–72 °F
- pH 6 to 8
- groups of 6+
Endler's livebearer
Peaceful · Top · easy care
- 1.8 in adult
- 10+ gal
- 72–82 °F
- pH 7 to 8
- groups of 3+
Cherry barb
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Tiger barb
Semi-aggressive · Middle · easy care
- 3 in adult
- 29+ gal
- 74–80 °F
- pH 6 to 8
- groups of 6+
Swordtail
Peaceful · Middle · easy care
- 5.5 in adult
- 29+ gal
- 72–82 °F
- pH 7 to 8.4
- groups of 3+
Pygmy corydoras
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Rummy-nose tetra
Peaceful · Middle · moderate care
- 2 in adult
- 20+ gal
- 75–82 °F
- pH 5.5 to 7
- groups of 8+
Black neon tetra
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 73–81 °F
- pH 5.5 to 7.5
- groups of 6+
Glowlight tetra
Peaceful · Middle · easy care
- 1.5 in adult
- 10+ gal
- 72–80 °F
- pH 6 to 7.5
- groups of 6+
Pearl gourami
Peaceful · Top · easy care
- 4.5 in adult
- 29+ gal
- 77–82 °F
- pH 6 to 7.5
- alone or pair
Dwarf neon rainbowfish
Peaceful · Middle · easy care
- 3 in adult
- 29+ gal
- 75–81 °F
- pH 6.5 to 7.5
- groups of 6+
Boesemani rainbowfish
Peaceful · Middle · easy care
- 4.5 in adult
- 55+ gal
- 75–82 °F
- pH 7 to 8
- groups of 6+
German blue ram
Peaceful · Bottom · demanding care
- 3 in adult
- 20+ gal
- 78–85 °F
- pH 5 to 7
- alone or pair
Kribensis
Semi-aggressive · Bottom · easy care
- 4 in adult
- 29+ gal
- 75–80 °F
- pH 6 to 7.5
- alone or pair
Cockatoo dwarf cichlid
Semi-aggressive · Bottom · moderate care
- 3 in adult
- 20+ gal
- 75–84 °F
- pH 5.5 to 7.5
- alone or pair
Pea puffer
Aggressive · All levels · moderate care
- 1.4 in adult
- 10+ gal
- 72–82 °F
- pH 7 to 8.3
- groups of 3+
Acei cichlid
Semi-aggressive · Middle · easy care
- 6 in adult
- 55+ gal
- 74–82 °F
- pH 7.5 to 8.5
- groups of 6+
African butterflyfish
Semi-aggressive · Top · moderate care
- 5 in adult
- 30+ gal
- 73–86 °F
- pH 6.5 to 7.5
- alone or pair
Agassiz's dwarf cichlid
Semi-aggressive · Bottom · moderate care
- 1.7 in adult
- 20+ gal
- 75–84 °F
- pH 5 to 7
- alone or pair
Amazon puffer
Semi-aggressive · All levels · moderate care
- 5 in adult
- 29+ gal
- 74–82 °F
- pH 6.5 to 7.5
- groups of 3+
American flagfish
Semi-aggressive · Middle · easy care
- 2.5 in adult
- 20+ gal
- 65–79 °F
- pH 6.5 to 8.5
- alone or pair
Asian stone catfish
Peaceful · Bottom · moderate care
- 1.6 in adult
- 10+ gal
- 64–75 °F
- pH 6.5 to 7.5
- groups of 3+
Auratus cichlid
Aggressive · Middle · moderate care
- 4.3 in adult
- 55+ gal
- 73–82 °F
- pH 7.6 to 8.6
- groups of 4+
Bala shark
Peaceful · Middle · moderate care
- 14 in adult
- 125+ gal
- 72–82 °F
- pH 6 to 8
- groups of 5+
Banded gourami
Peaceful · Top · easy care
- 4 in adult
- 30+ gal
- 72–82 °F
- pH 6 to 8
- alone or pair
Bandit corydoras
Peaceful · Bottom · easy care
- 1.9 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7
- groups of 6+
Black ghost knifefish
Semi-aggressive · Bottom · demanding care
- 20 in adult
- 125+ gal
- 73–82 °F
- pH 6 to 7.5
- alone or pair
Black moor
Peaceful · All levels · easy care
- 6 in adult
- 30+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Black phantom tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Black ruby barb
Peaceful · Middle · easy care
- 3 in adult
- 29+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Black skirt tetra
Peaceful · Middle · easy care
- 3 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Black-barred limia
Peaceful · Middle · moderate care
- 2 in adult
- 20+ gal
- 75–79 °F
- pH 7 to 8.5
- groups of 5+
Bleeding heart tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–80 °F
- pH 5.5 to 7.5
- groups of 6+
Blind cave tetra
Semi-aggressive · Middle · easy care
- 4.7 in adult
- 29+ gal
- 68–77 °F
- pH 6.5 to 8
- groups of 6+
Blood parrot cichlid
Semi-aggressive · Middle · moderate care
- 8 in adult
- 55+ gal
- 76–80 °F
- pH 6.5 to 7.5
- alone or pair
Bloodfin tetra
Peaceful · Top · easy care
- 2.2 in adult
- 20+ gal
- 65–82 °F
- pH 6 to 8
- groups of 6+
Blue acara
Semi-aggressive · Middle · easy care
- 6 in adult
- 40+ gal
- 72–82 °F
- pH 6.5 to 8
- alone or pair
Blue dolphin cichlid
Semi-aggressive · Middle · moderate care
- 7.9 in adult
- 75+ gal
- 75–78 °F
- pH 7.5 to 8.5
- groups of 4+
Bolivian ram
Peaceful · Bottom · easy care
- 3.2 in adult
- 29+ gal
- 72–80 °F
- pH 6 to 8
- alone or pair
Brilliant rasbora
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 5.5 to 7
- groups of 8+
Bubble eye goldfish
Peaceful · All levels · demanding care
- 4 in adult
- 30+ gal
- 65–74 °F
- pH 7 to 8
- groups of 2+
Buenos Aires tetra
Semi-aggressive · Middle · easy care
- 3 in adult
- 29+ gal
- 64–82 °F
- pH 6 to 8
- groups of 6+
Bumblebee catfish
Peaceful · Bottom · easy care
- 2.4 in adult
- 20+ gal
- 70–77 °F
- pH 6 to 7.5
- alone or pair
Bumblebee cichlid
Aggressive · Middle · moderate care
- 6.3 in adult
- 75+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 4+
Butterfly goodeid
Semi-aggressive · Middle · easy care
- 4 in adult
- 30+ gal
- 70–75 °F
- pH 7 to 8
- groups of 6+
Butterfly pleco
Peaceful · Bottom · moderate care
- 5.1 in adult
- 30+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Candy-striped pleco
Peaceful · Bottom · moderate care
- 5.9 in adult
- 30+ gal
- 72–79 °F
- pH 6 to 7
- alone or pair
Celebes rainbowfish
Peaceful · Top · moderate care
- 3 in adult
- 29+ gal
- 68–82 °F
- pH 7 to 8
- groups of 6+
Checker barb
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 64–77 °F
- pH 5.5 to 7.5
- groups of 6+
Chinese algae eater
Semi-aggressive · Bottom · easy care
- 11 in adult
- 75+ gal
- 72–82 °F
- pH 6 to 8
- alone or pair
Chocolate gourami
Peaceful · Middle · demanding care
- 2.4 in adult
- 20+ gal
- 77–81 °F
- pH 5 to 6.5
- alone or pair
Clown barb
Peaceful · Middle · easy care
- 5.9 in adult
- 55+ gal
- 75–82 °F
- pH 6 to 7.5
- groups of 6+
Clown killifish
Peaceful · Top · moderate care
- 1.4 in adult
- 5+ gal
- 72–80 °F
- pH 5.5 to 7
- groups of 4+
Clown loach
Peaceful · Bottom · moderate care
- 12 in adult
- 125+ gal
- 77–86 °F
- pH 6 to 7.5
- groups of 5+
Clown pleco
Peaceful · Bottom · easy care
- 3.5 in adult
- 20+ gal
- 73–82 °F
- pH 6.5 to 7.5
- alone or pair
Colombian tetra
Peaceful · Middle · easy care
- 2.6 in adult
- 30+ gal
- 75–79 °F
- pH 6 to 7.5
- groups of 6+
Comet goldfish
Peaceful · All levels · easy care
- 10 in adult
- 75+ gal
- 50–75 °F
- pH 7 to 8
- groups of 2+
Common goldfish
Peaceful · All levels · easy care
- 8.7 in adult
- 75+ gal
- 50–75 °F
- pH 7 to 8
- groups of 2+
Common pleco
Peaceful · Bottom · moderate care
- 18 in adult
- 125+ gal
- 72–82 °F
- pH 6.5 to 7.8
- alone or pair
Congo tetra
Peaceful · Middle · moderate care
- 3 in adult
- 29+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Convict cichlid
Aggressive · Bottom · easy care
- 4.7 in adult
- 29+ gal
- 72–82 °F
- pH 6.5 to 8
- alone or pair
Convict julie
Semi-aggressive · Bottom · easy care
- 5.1 in adult
- 30+ gal
- 75–80 °F
- pH 7.5 to 9
- groups of 2+
Coral red pencilfish
Peaceful · Middle · moderate care
- 1.1 in adult
- 10+ gal
- 75–82 °F
- pH 5 to 7
- groups of 8+
Croaking gourami
Peaceful · Top · moderate care
- 2.8 in adult
- 15+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 3+
Cuckoo catfish
Peaceful · Bottom · moderate care
- 6 in adult
- 55+ gal
- 75–81 °F
- pH 7.5 to 9
- groups of 4+
Demasoni cichlid
Aggressive · Bottom · moderate care
- 3.9 in adult
- 55+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 12+
Denison barb
Peaceful · Middle · moderate care
- 6 in adult
- 55+ gal
- 64–77 °F
- pH 6.8 to 7.8
- groups of 6+
Diamond tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 7.5
- groups of 6+
Discus
Peaceful · Middle · demanding care
- 8 in adult
- 55+ gal
- 82–88 °F
- pH 5 to 7
- groups of 5+
Dojo loach
Peaceful · Bottom · easy care
- 10 in adult
- 55+ gal
- 55–77 °F
- pH 6.5 to 8
- groups of 3+
Dwarf chain loach
Peaceful · Bottom · moderate care
- 2.5 in adult
- 20+ gal
- 75–82 °F
- pH 6.5 to 7.5
- groups of 6+
Dwarf corydoras
Peaceful · Middle · moderate care
- 1.4 in adult
- 10+ gal
- 68–82 °F
- pH 6 to 7.5
- groups of 8+
Dwarf pencilfish
Peaceful · Middle · moderate care
- 1.4 in adult
- 10+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Dwarf rasbora
Peaceful · Middle · moderate care
- 1 in adult
- 5+ gal
- 75–82 °F
- pH 5 to 7
- groups of 8+
Electric blue acara
Semi-aggressive · Middle · easy care
- 6 in adult
- 40+ gal
- 72–82 °F
- pH 6.5 to 8
- alone or pair
Electric blue hap
Semi-aggressive · Middle · moderate care
- 4.5 in adult
- 75+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 3+
Elephantnose fish
Peaceful · Bottom · demanding care
- 9 in adult
- 55+ gal
- 77–82 °F
- pH 6.5 to 7.5
- alone or pair
Emerald corydoras
Peaceful · Bottom · easy care
- 3 in adult
- 29+ gal
- 72–82 °F
- pH 5.8 to 8
- groups of 6+
Emperor tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Everglades pygmy sunfish
Peaceful · Bottom · moderate care
- 1.3 in adult
- 5+ gal
- 55–80 °F
- pH 6.5 to 7.5
- groups of 2+
Exclamation point rasbora
Peaceful · Middle · moderate care
- 0.6 in adult
- 5+ gal
- 72–82 °F
- pH 5.5 to 7
- groups of 8+
Fairy cichlid
Semi-aggressive · Middle · easy care
- 3.5 in adult
- 30+ gal
- 75–81 °F
- pH 7.8 to 9
- groups of 2+
Fantail goldfish
Peaceful · All levels · easy care
- 8 in adult
- 30+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Featherfin squeaker
Semi-aggressive · Bottom · easy care
- 11.8 in adult
- 75+ gal
- 72–79 °F
- pH 6.5 to 8
- alone or pair
Festivum
Semi-aggressive · Middle · moderate care
- 4.8 in adult
- 55+ gal
- 75–84 °F
- pH 6 to 7.5
- alone or pair
Firemouth cichlid
Semi-aggressive · Bottom · easy care
- 6 in adult
- 40+ gal
- 75–84 °F
- pH 6.5 to 8
- alone or pair
Five-banded barb
Peaceful · Middle · moderate care
- 3.5 in adult
- 29+ gal
- 74–84 °F
- pH 5 to 7
- groups of 5+
Flame tetra
Peaceful · Middle · easy care
- 1 in adult
- 10+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Flowerhorn cichlid
Aggressive · Middle · easy care
- 14 in adult
- 75+ gal
- 78–84 °F
- pH 7 to 8
- one per tank
Flying fox
Semi-aggressive · Bottom · easy care
- 6 in adult
- 40+ gal
- 72–79 °F
- pH 6 to 7.5
- one per tank
Forktail blue-eye rainbowfish
Peaceful · Top · moderate care
- 2 in adult
- 10+ gal
- 72–80 °F
- pH 7 to 8
- groups of 6+
Frontosa
Semi-aggressive · Middle · moderate care
- 13 in adult
- 125+ gal
- 76–82 °F
- pH 7.8 to 9
- alone or pair
Gardneri killifish
Semi-aggressive · Top · easy care
- 2.6 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 3+
Giant danio
Semi-aggressive · Top · easy care
- 6 in adult
- 55+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Glass catfish
Peaceful · Middle · moderate care
- 3 in adult
- 29+ gal
- 75–82 °F
- pH 6.5 to 7.5
- groups of 6+
GloFish danio
Peaceful · Top · easy care
- 2 in adult
- 10+ gal
- 64–77 °F
- pH 6.5 to 8
- groups of 6+
GloFish tetra
Peaceful · Middle · easy care
- 3 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Glowlight danio
Peaceful · Middle · easy care
- 1.5 in adult
- 15+ gal
- 66–75 °F
- pH 6 to 7.5
- groups of 6+
Gold barb
Peaceful · Middle · easy care
- 2.8 in adult
- 20+ gal
- 64–75 °F
- pH 6 to 8
- groups of 6+
Gold nugget pleco
Peaceful · Bottom · moderate care
- 8.8 in adult
- 75+ gal
- 77–86 °F
- pH 6.5 to 7.5
- alone or pair
Golden dwarf cichlid
Semi-aggressive · Bottom · easy care
- 2.2 in adult
- 20+ gal
- 72–80 °F
- pH 6 to 7.5
- alone or pair
Golden pencilfish
Peaceful · Top · moderate care
- 2.6 in adult
- 15+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Golden wonder killifish
Semi-aggressive · Top · easy care
- 4 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- alone or pair
Green neon tetra
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 75–82 °F
- pH 5 to 6.5
- groups of 8+
Green phantom pleco
Peaceful · Bottom · moderate care
- 5.9 in adult
- 40+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Green terror
Aggressive · Middle · moderate care
- 12 in adult
- 75+ gal
- 70–79 °F
- pH 6.5 to 8
- alone or pair
Head and tail light tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 72–82 °F
- pH 6 to 7.8
- groups of 6+
Indian glassfish
Peaceful · Middle · moderate care
- 3.1 in adult
- 20+ gal
- 72–82 °F
- pH 7 to 8
- groups of 6+
Jack Dempsey
Aggressive · Bottom · moderate care
- 10 in adult
- 75+ gal
- 72–82 °F
- pH 6.5 to 8
- alone or pair
Jaguar cichlid
Aggressive · Middle · moderate care
- 26 in adult
- 125+ gal
- 75–82 °F
- pH 7 to 8.7
- alone or pair
Jewel cichlid
Aggressive · Bottom · easy care
- 6 in adult
- 40+ gal
- 72–82 °F
- pH 6.5 to 8
- alone or pair
Julii corydoras
Peaceful · Bottom · easy care
- 2.5 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Kenyi cichlid
Aggressive · Bottom · moderate care
- 5 in adult
- 55+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 4+
Kerri tetra
Peaceful · Middle · easy care
- 1.1 in adult
- 20+ gal
- 75–81 °F
- pH 6 to 7.5
- groups of 6+
Keyhole cichlid
Peaceful · Middle · easy care
- 4 in adult
- 30+ gal
- 72–80 °F
- pH 6 to 7.5
- alone or pair
Kissing gourami
Semi-aggressive · Middle · easy care
- 12 in adult
- 75+ gal
- 72–82 °F
- pH 6.8 to 8.5
- alone or pair
Kubotai loach
Peaceful · Bottom · moderate care
- 5.9 in adult
- 40+ gal
- 77–86 °F
- pH 6 to 7.5
- groups of 5+
Kubotai rasbora
Peaceful · Middle · easy care
- 0.8 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 8+
Lambchop rasbora
Peaceful · Middle · easy care
- 1.2 in adult
- 10+ gal
- 73–82 °F
- pH 6 to 7.5
- groups of 8+
Least killifish
Peaceful · Middle · easy care
- 1.2 in adult
- 5+ gal
- 64–80 °F
- pH 7 to 8
- groups of 6+
Lemon tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 8
- groups of 6+
Leopard frog pleco
Peaceful · Bottom · moderate care
- 2.4 in adult
- 20+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Lionhead goldfish
Peaceful · All levels · moderate care
- 6 in adult
- 30+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Lyretail killifish
Peaceful · Top · moderate care
- 2.4 in adult
- 10+ gal
- 70–79 °F
- pH 5.5 to 7
- groups of 3+
Marbled hatchetfish
Peaceful · Top · moderate care
- 1.5 in adult
- 20+ gal
- 75–82 °F
- pH 5.5 to 7
- groups of 6+
Medaka
Peaceful · Top · easy care
- 1.5 in adult
- 10+ gal
- 65–82 °F
- pH 6.5 to 8
- groups of 6+
Moonlight gourami
Peaceful · Top · easy care
- 5 in adult
- 30+ gal
- 77–84 °F
- pH 6 to 7.5
- one male per tank
Odessa barb
Peaceful · Middle · easy care
- 2.5 in adult
- 29+ gal
- 68–79 °F
- pH 6 to 8
- groups of 6+
Oranda
Peaceful · All levels · easy care
- 8 in adult
- 30+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Oscar
Aggressive · Middle · moderate care
- 14 in adult
- 75+ gal
- 72–80 °F
- pH 6 to 8
- alone or pair
Paradise fish
Semi-aggressive · Top · easy care
- 3.5 in adult
- 20+ gal
- 61–79 °F
- pH 6 to 8
- one male per tank
Peacock cichlid
Semi-aggressive · Bottom · moderate care
- 6 in adult
- 55+ gal
- 75–82 °F
- pH 7.5 to 8.6
- one male per tank
Peacock eel
Peaceful · Bottom · moderate care
- 12 in adult
- 55+ gal
- 73–82 °F
- pH 6.5 to 7.5
- alone or pair
Peacock gudgeon
Peaceful · Bottom · easy care
- 3 in adult
- 15+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 4+
Pearl danio
Peaceful · Top · easy care
- 2.6 in adult
- 20+ gal
- 68–77 °F
- pH 6 to 8
- groups of 6+
Pearlscale goldfish
Peaceful · All levels · moderate care
- 8 in adult
- 30+ gal
- 65–74 °F
- pH 7 to 8
- groups of 2+
Penguin tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Peppered corydoras
Peaceful · Bottom · easy care
- 2.8 in adult
- 20+ gal
- 64–77 °F
- pH 6 to 8
- groups of 6+
Petricola catfish
Peaceful · Bottom · easy care
- 4.5 in adult
- 30+ gal
- 73–79 °F
- pH 7.5 to 9
- groups of 3+
Phoenix rasbora
Peaceful · Middle · moderate care
- 0.8 in adult
- 5+ gal
- 74–82 °F
- pH 5 to 7
- groups of 8+
Pictus catfish
Peaceful · Bottom · easy care
- 4.3 in adult
- 55+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 3+
Pitbull pleco
Peaceful · Bottom · moderate care
- 1.6 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 3+
Rainbow cichlid
Semi-aggressive · Middle · easy care
- 6 in adult
- 30+ gal
- 72–84 °F
- pH 7 to 8
- alone or pair
Rainbow shark
Semi-aggressive · Bottom · easy care
- 6 in adult
- 55+ gal
- 72–80 °F
- pH 6.5 to 7.5
- one per tank
Rainbow shiner
Peaceful · Middle · easy care
- 3 in adult
- 30+ gal
- 60–75 °F
- pH 6.5 to 8
- groups of 6+
Ranchu goldfish
Peaceful · All levels · moderate care
- 8 in adult
- 30+ gal
- 65–74 °F
- pH 7 to 8
- groups of 2+
Red devil cichlid
Aggressive · Middle · moderate care
- 12 in adult
- 75+ gal
- 75–82 °F
- pH 7 to 8
- one per tank
Red eye tetra
Peaceful · Middle · easy care
- 2.8 in adult
- 29+ gal
- 73–82 °F
- pH 6 to 8
- groups of 6+
Red lizard whiptail catfish
Peaceful · Bottom · easy care
- 5 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- alone or pair
Red neon blue-eye
Peaceful · Top · moderate care
- 1.2 in adult
- 10+ gal
- 74–82 °F
- pH 6 to 7.5
- groups of 6+
Red phantom tetra
Peaceful · Middle · moderate care
- 1.3 in adult
- 15+ gal
- 68–77 °F
- pH 5.5 to 7.5
- groups of 6+
Red rainbowfish
Peaceful · Middle · easy care
- 5.9 in adult
- 55+ gal
- 72–79 °F
- pH 7 to 8
- groups of 6+
Red zebra cichlid
Aggressive · Bottom · easy care
- 5 in adult
- 55+ gal
- 72–82 °F
- pH 7.5 to 8.5
- groups of 3+
Red-tail dwarf puffer
Aggressive · All levels · moderate care
- 1.7 in adult
- 15+ gal
- 75–82 °F
- pH 6 to 7.5
- one male per tank
Red-tail shark
Semi-aggressive · Bottom · easy care
- 6 in adult
- 55+ gal
- 72–79 °F
- pH 6.5 to 7.5
- one per tank
Reticulated hillstream loach
Peaceful · Bottom · moderate care
- 3 in adult
- 20+ gal
- 68–75 °F
- pH 6.5 to 7.5
- groups of 3+
Ropefish
Peaceful · Bottom · moderate care
- 15 in adult
- 55+ gal
- 75–82 °F
- pH 6.5 to 7.5
- alone or pair
Rosy barb
Peaceful · Middle · easy care
- 6 in adult
- 29+ gal
- 64–77 °F
- pH 6 to 8
- groups of 6+
Rosy tetra
Peaceful · Middle · easy care
- 1.3 in adult
- 15+ gal
- 75–82 °F
- pH 6 to 7.5
- groups of 6+
Royal pleco
Peaceful · Bottom · moderate care
- 17 in adult
- 125+ gal
- 72–82 °F
- pH 6.5 to 7.5
- one per tank
Rubbernose pleco
Peaceful · Bottom · moderate care
- 5.7 in adult
- 30+ gal
- 68–77 °F
- pH 6.5 to 7.5
- alone or pair
Ruby tetra
Peaceful · Middle · moderate care
- 1 in adult
- 10+ gal
- 72–80 °F
- pH 5 to 7
- groups of 8+
Rusty cichlid
Semi-aggressive · Middle · easy care
- 4.3 in adult
- 40+ gal
- 75–79 °F
- pH 7.5 to 8.5
- groups of 4+
Ryukin
Peaceful · All levels · easy care
- 8 in adult
- 30+ gal
- 64–74 °F
- pH 7 to 8
- groups of 2+
Sailfin molly
Peaceful · Middle · easy care
- 5.9 in adult
- 30+ gal
- 72–82 °F
- pH 7.5 to 8.5
- groups of 3+
Salt-and-pepper corydoras
Peaceful · Bottom · moderate care
- 1 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Salvini cichlid
Aggressive · Middle · moderate care
- 5.9 in adult
- 40+ gal
- 72–81 °F
- pH 7 to 8
- alone or pair
Saulosi cichlid
Semi-aggressive · Bottom · moderate care
- 3.4 in adult
- 40+ gal
- 76–82 °F
- pH 7.5 to 8.5
- groups of 6+
Scarlet badis
Peaceful · Bottom · moderate care
- 0.8 in adult
- 10+ gal
- 72–79 °F
- pH 6.5 to 7.8
- one male per tank
Scissortail rasbora
Peaceful · Middle · easy care
- 6 in adult
- 40+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
Senegal bichir
Semi-aggressive · Bottom · easy care
- 14 in adult
- 75+ gal
- 75–84 °F
- pH 6.5 to 7.5
- alone or pair
Serpae tetra
Semi-aggressive · Middle · easy care
- 1.6 in adult
- 20+ gal
- 72–79 °F
- pH 5.5 to 7.5
- groups of 6+
Severum
Semi-aggressive · Middle · easy care
- 8 in adult
- 55+ gal
- 75–84 °F
- pH 6 to 7.5
- alone or pair
Shell-dweller cichlid
Semi-aggressive · Bottom · moderate care
- 2 in adult
- 10+ gal
- 75–80 °F
- pH 7.5 to 9
- groups of 3+
Shubunkin
Peaceful · All levels · easy care
- 12 in adult
- 75+ gal
- 50–75 °F
- pH 7 to 8
- groups of 2+
Siamese algae eater
Peaceful · Bottom · easy care
- 6 in adult
- 29+ gal
- 72–80 °F
- pH 6.5 to 7.5
- alone or pair
Silver dollar
Peaceful · Middle · easy care
- 6 in adult
- 75+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 5+
Silvertip tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 8
- groups of 6+
Snowball pleco
Peaceful · Bottom · moderate care
- 5 in adult
- 30+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Sparkling gourami
Peaceful · Top · moderate care
- 1.6 in adult
- 10+ gal
- 76–82 °F
- pH 6 to 7.5
- alone or pair
Spotted blue-eye
Peaceful · Top · moderate care
- 1 in adult
- 10+ gal
- 75–82 °F
- pH 5.5 to 7.5
- groups of 6+
Sterbai corydoras
Peaceful · Bottom · easy care
- 2.6 in adult
- 20+ gal
- 74–82 °F
- pH 6 to 7.6
- groups of 6+
Striped Raphael catfish
Peaceful · Bottom · easy care
- 8 in adult
- 55+ gal
- 75–81 °F
- pH 6 to 7.5
- alone or pair
Texas cichlid
Aggressive · Middle · moderate care
- 12 in adult
- 75+ gal
- 68–82 °F
- pH 6.5 to 8
- alone or pair
Thick-lipped gourami
Peaceful · Top · easy care
- 3.5 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 7.5
- alone or pair
Threadfin rainbowfish
Peaceful · Middle · moderate care
- 2 in adult
- 20+ gal
- 73–84 °F
- pH 6 to 7
- groups of 6+
Three-spot (blue) gourami
Semi-aggressive · Top · easy care
- 6 in adult
- 29+ gal
- 72–82 °F
- pH 6 to 8
- one male per tank
Turquoise rainbowfish
Peaceful · Middle · easy care
- 4.7 in adult
- 55+ gal
- 72–79 °F
- pH 7 to 8
- groups of 6+
Twig catfish
Peaceful · Bottom · demanding care
- 8.9 in adult
- 30+ gal
- 72–79 °F
- pH 6 to 7.5
- alone or pair
Uaru
Semi-aggressive · Middle · moderate care
- 9.8 in adult
- 75+ gal
- 79–86 °F
- pH 5.5 to 7
- groups of 2+
Umbrella dwarf cichlid
Semi-aggressive · Bottom · moderate care
- 1.5 in adult
- 15+ gal
- 70–79 °F
- pH 6 to 7.5
- alone or pair
Upside-down catfish
Peaceful · Middle · easy care
- 4 in adult
- 29+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 3+
Variatus platy
Peaceful · Middle · easy care
- 2.8 in adult
- 15+ gal
- 61–75 °F
- pH 7 to 8.2
- groups of 3+
Venustus cichlid
Semi-aggressive · Bottom · moderate care
- 9.8 in adult
- 125+ gal
- 76–82 °F
- pH 7.5 to 8.6
- groups of 3+
Wrestling halfbeak
Peaceful · Top · moderate care
- 2.8 in adult
- 20+ gal
- 72–82 °F
- pH 6.5 to 8
- groups of 3+
X-ray tetra
Peaceful · Middle · easy care
- 1.8 in adult
- 15+ gal
- 75–82 °F
- pH 6 to 8
- groups of 6+
Yellow lab cichlid
Semi-aggressive · Middle · easy care
- 6 in adult
- 55+ gal
- 72–82 °F
- pH 7.5 to 8.5
- groups of 4+
Yoyo loach
Peaceful · Bottom · moderate care
- 6 in adult
- 40+ gal
- 75–82 °F
- pH 6 to 7.5
- groups of 5+
Zebra loach
Peaceful · Bottom · easy care
- 4 in adult
- 29+ gal
- 73–79 °F
- pH 6 to 7.5
- groups of 5+
Zebra pleco
Peaceful · Bottom · demanding care
- 3.2 in adult
- 20+ gal
- 79–86 °F
- pH 6.5 to 7.5
- alone or pair
Zig-zag eel
Semi-aggressive · Bottom · moderate care
- 20 in adult
- 55+ gal
- 72–82 °F
- pH 6.5 to 7.5
- one per tank
Cherry shrimp
Peaceful · Bottom · easy care
- 1.6 in adult
- 5+ gal
- 65–82 °F
- pH 6.5 to 8
- groups of 10+
Amano shrimp
Peaceful · Bottom · easy care
- 2 in adult
- 10+ gal
- 68–80 °F
- pH 6.5 to 7.5
- groups of 3+
Zebra nerite snail
Peaceful · Bottom · easy care
- 1 in adult
- 5+ gal
- 70–80 °F
- pH 7 to 8.5
- alone or pair
Mystery snail
Peaceful · Bottom · easy care
- 2 in adult
- 10+ gal
- 68–82 °F
- pH 7 to 8
- alone or pair
African dwarf frog
Peaceful · All levels · moderate care
- 1.5 in adult
- 10+ gal
- 75–82 °F
- pH 6.5 to 8
- groups of 2+
Assassin snail
Peaceful · Bottom · easy care
- 1 in adult
- 5+ gal
- 72–80 °F
- pH 7 to 8
- alone or pair
Axolotl
Peaceful · Bottom · moderate care
- 9 in adult
- 20+ gal
- 60–68 °F
- pH 6.5 to 8
- alone or pair
Bamboo shrimp
Peaceful · Bottom · moderate care
- 3 in adult
- 20+ gal
- 72–82 °F
- pH 6.5 to 7.5
- alone or pair
Bladder snail
Peaceful · Bottom · easy care
- 0.6 in adult
- 5+ gal
- 64–82 °F
- pH 7 to 8.5
- alone or pair
Crystal red shrimp
Peaceful · Bottom · demanding care
- 1.2 in adult
- 10+ gal
- 62–76 °F
- pH 5.8 to 7.4
- groups of 10+
Dwarf orange crayfish
Semi-aggressive · Bottom · easy care
- 2 in adult
- 10+ gal
- 60–77 °F
- pH 7 to 8
- alone or pair
Electric blue crayfish
Aggressive · Bottom · easy care
- 5 in adult
- 20+ gal
- 65–78 °F
- pH 7 to 8
- one per tank
Ghost shrimp
Peaceful · Bottom · easy care
- 2 in adult
- 5+ gal
- 65–80 °F
- pH 7 to 8
- groups of 3+
Horned nerite snail
Peaceful · Bottom · easy care
- 0.5 in adult
- 5+ gal
- 72–80 °F
- pH 7 to 8.5
- alone or pair
Japanese trapdoor snail
Peaceful · Bottom · easy care
- 2 in adult
- 10+ gal
- 60–80 °F
- pH 7 to 8
- alone or pair
Malaysian trumpet snail
Peaceful · Bottom · easy care
- 1.2 in adult
- 5+ gal
- 64–86 °F
- pH 7 to 8
- alone or pair
Rabbit snail
Peaceful · Bottom · moderate care
- 3 in adult
- 20+ gal
- 76–84 °F
- pH 7.3 to 8.5
- alone or pair
Ramshorn snail
Peaceful · Bottom · easy care
- 1 in adult
- 5+ gal
- 64–82 °F
- pH 7 to 8
- alone or pair
Thai micro crab
Peaceful · Bottom · moderate care
- 1 in adult
- 5+ gal
- 70–82 °F
- pH 6.5 to 7.3
- groups of 3+
Vampire shrimp
Peaceful · Bottom · moderate care
- 6 in adult
- 29+ gal
- 74–84 °F
- pH 6.5 to 7.8
- alone or pair
No species on this list match those filters. Try a larger tank or clear a filter.
More fish lists
Fish for a 5 gallon tankFish for a 10 gallon tankFish for a 15 gallon tankFish for a 20 gallon tankFish for a 29 gallon tankFish for a 30 gallon tankFish for a 40 gallon tankFish for a 50 gallon tankFish for a 55 gallon tankFish for a 75 gallon tankFish for a 100 gallon tankBest fish for beginnersBetta tank matesGoldfish tank matesAngelfish tank matesShrimp-safe fishCold-water fishSchooling fishBottom-dwelling fishTop-dwelling fishAlgae eatersNano fishCenterpiece fishFish for hard waterFish for soft waterDither fishColorful freshwater fishAll fish
Names, and adult sizes where the article gives one, are checked against Wikipedia; care ranges are common hobby guidance, and each species page says which is which. 221 of these 241 are fish. Photos are real photographs from Wikimedia Commons, credited below; the lineup is our own drawing at one scale.
Photo credits
Real photographs from Wikimedia Commons, resized and cropped to fit; each is used under the license named.
- Neon tetra Holger Krisp, CC BY 3.0, via Wikimedia Commons
- Betta ivabalk (Pixabay), CC0, via Wikimedia Commons
- Guppy Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Platy Monika Korzeniec, CC BY-SA 3.0, via Wikimedia Commons
- Bronze corydoras Quatermass (English Wikipedia), Public domain, via Wikimedia Commons
- Harlequin rasbora NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
- Angelfish Citron, CC BY-SA 3.0, via Wikimedia Commons
- Zebra danio Roundish, CC0, via Wikimedia Commons
- Cardinal tetra CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
- Ember tetra Klaus Rudloff, CC BY-SA 4.0, via Wikimedia Commons
- Molly LPA74, CC BY-SA 4.0, via Wikimedia Commons
- Honey gourami Antoon Dommerholt (Dutch Wikipedia), CC BY-SA 3.0, via Wikimedia Commons
- Dwarf gourami Quatermass (English Wikipedia), Public domain, via Wikimedia Commons
- Otocinclus CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
- Bristlenose pleco André Karwath aka Aka, CC BY-SA 2.5, via Wikimedia Commons
- Kuhli loach Iidkk, CC BY-SA 4.0, via Wikimedia Commons
- Panda corydoras Chronotopian, CC BY-SA 3.0, via Wikimedia Commons
- Fancy goldfish Benson Kua, CC BY-SA 2.0, via Wikimedia Commons
- Chili rasbora JoKrimmel, CC BY-SA 4.0, via Wikimedia Commons
- Celestial pearl danio Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
- White cloud mountain minnow Petrtyl, CC BY 4.0, via Wikimedia Commons
- Endler's livebearer Dgrummon, CC BY-SA 4.0, via Wikimedia Commons
- Cherry barb Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Tiger barb Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Swordtail Usien, CC0, via Wikimedia Commons
- Pygmy corydoras Birger A, CC BY-SA 3.0, via Wikimedia Commons
- Rummy-nose tetra PierangeloGatto, CC BY-SA 4.0, via Wikimedia Commons
- Black neon tetra Debivort, CC BY-SA 3.0, via Wikimedia Commons
- Glowlight tetra gonzalovalenzuela; cropped by Kyknos, CC BY 2.0, via Wikimedia Commons
- Pearl gourami h080, CC BY-SA 2.0, via Wikimedia Commons
- Dwarf neon rainbowfish Leo-nie-weh-oh; cropped by Der Regenbogenfisch, Public domain, via Wikimedia Commons
- Boesemani rainbowfish H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- German blue ram Eric Mengel, Public domain, via Wikimedia Commons
- Kribensis André Karwath aka Aka, CC BY-SA 2.5, via Wikimedia Commons
- Cockatoo dwarf cichlid William Kreijkes, CC BY-SA 3.0, via Wikimedia Commons
- Pea puffer Beta Mahatvaraj, CC BY-SA 4.0, via Wikimedia Commons
- Acei cichlid Toby Hudson, CC BY-SA 3.0, via Wikimedia Commons
- African butterflyfish Toniher, CC BY-SA 3.0, via Wikimedia Commons
- Agassiz's dwarf cichlid Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
- Amazon puffer O. Schneider, CC BY-SA 3.0, via Wikimedia Commons
- American flagfish nat_t (iNaturalist), CC0, via Wikimedia Commons
- Auratus cichlid Vlad Butsky from San Jose, CA, USA, CC BY 2.0, via Wikimedia Commons
- Bala shark H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Banded gourami Sandipan Das, CC BY 4.0, via Wikimedia Commons
- Bandit corydoras Gonzalo Valenzuela, CC BY-SA 2.0, via Wikimedia Commons
- Black ghost knifefish Vassil, CC0, via Wikimedia Commons
- Black moor Riyad Youssef, CC BY 2.5, via Wikimedia Commons
- Black phantom tetra Krächz, CC BY 3.0, via Wikimedia Commons
- Black ruby barb Derek Ramsey (Ram-Man), CC BY-SA 2.5, via Wikimedia Commons
- Black skirt tetra emptyvi, CC BY-SA 3.0, via Wikimedia Commons
- Black-barred limia Janet Cremetti, CC BY-SA 2.0, via Wikimedia Commons
- Bleeding heart tetra 5snake5, CC0, via Wikimedia Commons
- Blind cave tetra James St. John, CC BY 2.0, via Wikimedia Commons
- Blood parrot cichlid Citron, CC BY-SA 3.0, via Wikimedia Commons
- Bloodfin tetra VGW2006, Public domain, via Wikimedia Commons
- Blue acara Loïc Tremblay, CC BY-SA 3.0, via Wikimedia Commons
- Blue dolphin cichlid Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Bolivian ram HenryC88, CC BY-SA 4.0, via Wikimedia Commons
- Brilliant rasbora Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Bubble eye goldfish Angie Torres from Toronto, CC BY-SA 2.0, via Wikimedia Commons
- Buenos Aires tetra Øyvind Holmstad, CC BY-SA 3.0, via Wikimedia Commons
- Bumblebee catfish CHUCAO, CC BY-SA 4.0, via Wikimedia Commons
- Bumblebee cichlid Nicolas COUTHOUIS, CC BY-SA 2.5, via Wikimedia Commons
- Butterfly goodeid Przemysław Malkowski, CC BY-SA 3.0, via Wikimedia Commons
- Butterfly pleco Alberto Alcalá (iNaturalist), CC BY 4.0, via Wikimedia Commons
- Candy-striped pleco Gabriel Lelis Togni, CC BY 3.0, via Wikimedia Commons
- Celebes rainbowfish Brent Tibbatts, CC BY 3.0, via Wikimedia Commons
- Checker barb Dodoni, CC BY-SA 3.0, via Wikimedia Commons
- Chinese algae eater Pseudogastromyzon, Public domain, via Wikimedia Commons
- Chocolate gourami OSt DD, CC BY-SA 3.0, via Wikimedia Commons
- Clown killifish Dornenwolf, CC BY 2.0, via Wikimedia Commons
- Clown loach Vlad Butsky, CC BY 2.0, via Wikimedia Commons
- Colombian tetra Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Comet goldfish Michelle Jo (Humanfeather), CC BY 3.0, via Wikimedia Commons
- Common goldfish ぱたごん, CC BY-SA 3.0, via Wikimedia Commons
- Common pleco Richwales, Public domain, via Wikimedia Commons
- Congo tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Convict cichlid S. Olkowicz, CC BY 2.5, via Wikimedia Commons
- Convict julie Regani, Public domain, via Wikimedia Commons
- Coral red pencilfish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Croaking gourami Howard Jelks, U.S. Geological Survey, Public domain, via Wikimedia Commons
- Cuckoo catfish Mario Rubio García, CC BY 2.0, via Wikimedia Commons
- Demasoni cichlid lee Nachtigal, CC BY 2.0, via Wikimedia Commons
- Denison barb Anandarajkumar, CC BY-SA 3.0, via Wikimedia Commons
- Diamond tetra SOK, CC BY-SA 4.0, via Wikimedia Commons
- Discus Patrick Farrelly, Public domain, via Wikimedia Commons
- Dojo loach PrinceNimblesoft, CC0, via Wikimedia Commons
- Dwarf chain loach Stefan Maurer, CC BY-SA 2.0, via Wikimedia Commons
- Dwarf corydoras AquariaNR, CC BY-SA 3.0 de, via Wikimedia Commons
- Dwarf pencilfish Fanch from Paris, France, CC BY 2.0, via Wikimedia Commons
- Dwarf rasbora R.workoran, CC BY-SA 4.0, via Wikimedia Commons
- Electric blue acara 5snake5, CC0, via Wikimedia Commons
- Electric blue hap The Evil Spartan, CC BY-SA 3.0, via Wikimedia Commons
- Elephantnose fish Jutta234, CC BY-SA 3.0, via Wikimedia Commons
- Emerald corydoras NonstickRon, CC BY-SA 2.0, via Wikimedia Commons
- Emperor tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Everglades pygmy sunfish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Exclamation point rasbora R.workoran, CC BY-SA 4.0, via Wikimedia Commons
- Fairy cichlid FakirNL, CC BY-SA 4.0, via Wikimedia Commons
- Fantail goldfish Pogrebnoj-Alexandroff, CC BY 3.0, via Wikimedia Commons
- Featherfin squeaker Silex6, Public domain, via Wikimedia Commons
- Festivum Citron, CC BY-SA 3.0, via Wikimedia Commons
- Firemouth cichlid H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Five-banded barb NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
- Flame tetra Igor Balashov (iNaturalist), CC BY 4.0, via Wikimedia Commons
- Flowerhorn cichlid Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Flying fox Mirko Hartig, CC BY-SA 2.0 de, via Wikimedia Commons
- Forktail blue-eye rainbowfish Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Frontosa 5snake5, CC BY-SA 4.0, via Wikimedia Commons
- Gardneri killifish Tommy Kronkvist, CC BY-SA 4.0, via Wikimedia Commons
- Giant danio Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Glass catfish Martin Fisch, CC BY-SA 2.0, via Wikimedia Commons
- GloFish danio Karol Głąb (Karol007), CC BY-SA 3.0, via Wikimedia Commons
- GloFish tetra Bobby823Sk, CC BY-SA 4.0, via Wikimedia Commons
- Glowlight danio Melanochromis, Public domain, via Wikimedia Commons
- Gold barb Fred Hsu, CC BY-SA 3.0, via Wikimedia Commons
- Gold nugget pleco Anne Blindheim, CC BY-SA 3.0, via Wikimedia Commons
- Golden dwarf cichlid Borkowski.robert, CC BY-SA 4.0, via Wikimedia Commons
- Golden wonder killifish Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Green neon tetra Sascha Biedermann, CC BY-SA 2.5, via Wikimedia Commons
- Green phantom pleco 5snake5, CC0, via Wikimedia Commons
- Green terror Dr. David Midgley at en.wikipedia, CC BY 2.5, via Wikimedia Commons
- Head and tail light tetra Deadlyballistics (English Wikipedia), Public domain, via Wikimedia Commons
- Indian glassfish opencage, CC BY-SA 2.5, via Wikimedia Commons
- Jack Dempsey Sviemeister (English Wikipedia), CC BY 2.5, via Wikimedia Commons
- Jaguar cichlid George Chernilevsky, Public domain, via Wikimedia Commons
- Jewel cichlid NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
- Julii corydoras Bob Jenkins, CC BY 2.0, via Wikimedia Commons
- Kenyi cichlid Ged (Wikimedia Commons), Public domain, via Wikimedia Commons
- Kerri tetra Juan R. Lascorz, CC BY-SA 3.0, via Wikimedia Commons
- Keyhole cichlid D.W., Public domain, via Wikimedia Commons
- Kissing gourami 5snake5, CC BY-SA 4.0, via Wikimedia Commons
- Kubotai loach Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Kubotai rasbora BottomDog, CC BY-SA 3.0, via Wikimedia Commons
- Lambchop rasbora AverageWalrus, CC BY-SA 4.0, via Wikimedia Commons
- Least killifish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Lemon tetra SOK, CC BY-SA 4.0, via Wikimedia Commons
- Leopard frog pleco Frank M Greco, CC BY 3.0, via Wikimedia Commons
- Lionhead goldfish Roderick Santos, CC BY 2.5, via Wikimedia Commons
- Lyretail killifish Alexander Prokoshev, CC BY-SA 3.0, via Wikimedia Commons
- Marbled hatchetfish Sven Kullander, CC BY-SA 4.0, via Wikimedia Commons
- Medaka Seotaro, CC BY-SA 3.0, via Wikimedia Commons
- Moonlight gourami H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Odessa barb Anandarajkumar, CC BY-SA 3.0, via Wikimedia Commons
- Oranda Lawrencekhoo, CC BY-SA 4.0, via Wikimedia Commons
- Oscar H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Paradise fish André Karwath; edited by Muhammad, CC BY-SA 2.5, via Wikimedia Commons
- Peacock cichlid Xav84800, CC BY-SA 4.0, via Wikimedia Commons
- Peacock eel Zachary Randall, Florida Museum, CC BY 4.0, via Wikimedia Commons
- Peacock gudgeon Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Pearl danio Павлик Лисицын, CC BY 4.0, via Wikimedia Commons
- Pearlscale goldfish Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Penguin tetra Kkonstan, CC BY 3.0, via Wikimedia Commons
- Peppered corydoras Przemysław Malkowski, CC BY 2.5, via Wikimedia Commons
- Petricola catfish Nerezza, CC BY-SA 3.0, via Wikimedia Commons
- Phoenix rasbora Andrewbogott, CC BY-SA 4.0, via Wikimedia Commons
- Pictus catfish 5snake5, CC0, via Wikimedia Commons
- Pitbull pleco Haplochromis, CC BY-SA 3.0, via Wikimedia Commons
- Rainbow cichlid Happy Birthday To You!, Public domain, via Wikimedia Commons
- Rainbow shark MerlinSenger, CC BY-SA 3.0, via Wikimedia Commons
- Rainbow shiner H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Ranchu goldfish Lerdsuwa, CC BY-SA 4.0, via Wikimedia Commons
- Red devil cichlid AtelierMonpli, CC BY-SA 3.0, via Wikimedia Commons
- Red eye tetra Jhartshorn, CC BY-SA 4.0, via Wikimedia Commons
- Red lizard whiptail catfish Ckf6412, CC BY-SA 4.0, via Wikimedia Commons
- Red phantom tetra Tsunamicarlos (English Wikipedia), Public domain, via Wikimedia Commons
- Red rainbowfish Hectonichus, CC BY-SA 3.0, via Wikimedia Commons
- Red zebra cichlid Maha Dinesh, CC BY-SA 3.0, via Wikimedia Commons
- Red-tail dwarf puffer Neale Monks (English Wikipedia), CC BY-SA 3.0, via Wikimedia Commons
- Red-tail shark Astellar87, CC BY-SA 4.0, via Wikimedia Commons
- Reticulated hillstream loach Spiketooth, CC BY-SA 3.0, via Wikimedia Commons
- Ropefish Michał Zalewski, CC BY-SA 3.0, via Wikimedia Commons
- Rosy barb Kkonstan, CC BY 3.0, via Wikimedia Commons
- Rosy tetra Aquakeeper14, CC BY-SA 3.0, via Wikimedia Commons
- Royal pleco Neale Monks at en.wikipedia, CC BY-SA 3.0, via Wikimedia Commons
- Rubbernose pleco Frank Alvarez, CC BY 3.0, via Wikimedia Commons
- Ruby tetra Thomas Siems, CC BY-SA 2.0, via Wikimedia Commons
- Rusty cichlid Gerard Delany, CC BY-SA 2.5, via Wikimedia Commons
- Ryukin Lawrencekhoo, CC BY-SA 4.0, via Wikimedia Commons
- Sailfin molly Nick Tobler (iNaturalist), CC BY 4.0, via Wikimedia Commons
- Salt-and-pepper corydoras D.W., CC0, via Wikimedia Commons
- Salvini cichlid Banteo, Public domain, via Wikimedia Commons
- Saulosi cichlid Gerard Delany, CC BY-SA 2.5, via Wikimedia Commons
- Scarlet badis ATuin-hek, CC0, via Wikimedia Commons
- Scissortail rasbora Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Senegal bichir Zhyla at English Wikipedia, CC BY-SA 3.0, via Wikimedia Commons
- Serpae tetra Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Severum Trisha M Shears, Public domain, via Wikimedia Commons
- Shell-dweller cichlid Richard A. Ingebrigtsen, CC BY-SA 3.0, via Wikimedia Commons
- Shubunkin Rodsan18 at English Wikipedia, CC BY 2.5, via Wikimedia Commons
- Siamese algae eater aleander2137, CC BY-SA 4.0, via Wikimedia Commons
- Silver dollar Greg Hume, CC BY-SA 4.0, via Wikimedia Commons
- Silvertip tetra Filtropat; cropped by Kyknos, CC BY-SA 3.0, via Wikimedia Commons
- Sparkling gourami BEDO (Thailand), CC BY-SA 4.0, via Wikimedia Commons
- Spotted blue-eye Der Regenbogenfisch, CC BY-SA 3.0 de, via Wikimedia Commons
- Sterbai corydoras Matthew Mannell, Public domain, via Wikimedia Commons
- Striped Raphael catfish Piotr Kuczynski, CC BY-SA 3.0, via Wikimedia Commons
- Texas cichlid Charles & Clint, CC BY-SA 2.0, via Wikimedia Commons
- Thick-lipped gourami Oliver Gorski, CC BY-SA 3.0, via Wikimedia Commons
- Threadfin rainbowfish NRJMelvinT, CC BY-SA 4.0, via Wikimedia Commons
- Three-spot (blue) gourami Peter Jung, CC BY-SA 3.0, via Wikimedia Commons
- Turquoise rainbowfish Thomnight, CC BY-SA 2.0, via Wikimedia Commons
- Twig catfish Francesco Loda (CONTERALLY), CC BY 3.0, via Wikimedia Commons
- Uaru Brent Tibbats, CC BY 3.0, via Wikimedia Commons
- Umbrella dwarf cichlid Gordon Axmann, CC BY-SA 3.0, via Wikimedia Commons
- Upside-down catfish John P. Friel Ph.D., CC BY 4.0, via Wikimedia Commons
- Variatus platy Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Venustus cichlid Mike Peel, CC BY-SA 4.0, via Wikimedia Commons
- Wrestling halfbeak Ahsan_al_hidayat, CC BY-SA 3.0, via Wikimedia Commons
- X-ray tetra Debivort, CC BY-SA 3.0, via Wikimedia Commons
- Yellow lab cichlid Julian Matz, CC BY-SA 3.0, via Wikimedia Commons
- Yoyo loach Orishas92, Public domain, via Wikimedia Commons
- Zebra loach Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Zebra pleco Peaceinpianos, CC BY-SA 4.0, via Wikimedia Commons
- Zig-zag eel Adolsomee, CC BY-SA 3.0, via Wikimedia Commons
- Cherry shrimp TheJammingYam, CC BY-SA 3.0, via Wikimedia Commons
- Amano shrimp Stefanie Leuker, CC0, via Wikimedia Commons
- Zebra nerite snail TheJammingYam, CC BY-SA 3.0, via Wikimedia Commons
- Mystery snail Gabriel Resende Veiga, CC BY-SA 4.0, via Wikimedia Commons
- African dwarf frog Stuart Halliday, CC BY 3.0, via Wikimedia Commons
- Assassin snail Steffi Klee, CC BY-SA 3.0, via Wikimedia Commons
- Axolotl LoKiLeCh, CC BY-SA 3.0, via Wikimedia Commons
- Bamboo shrimp Faucon, CC BY-SA 2.5, via Wikimedia Commons
- Bladder snail Dat doris, CC BY-SA 4.0, via Wikimedia Commons
- Crystal red shrimp DirkBlankenhaus, CC BY-SA 3.0, via Wikimedia Commons
- Dwarf orange crayfish HellSpawn754, CC0, via Wikimedia Commons
- Electric blue crayfish Dirk Rohlfs, Public domain, via Wikimedia Commons
- Ghost shrimp Smithsonian Environmental Research Center, CC BY 2.0, via Wikimedia Commons
- Horned nerite snail Obsidian Soul, CC0, via Wikimedia Commons
- Japanese trapdoor snail Judy Gallagher, CC BY 2.0, via Wikimedia Commons
- Malaysian trumpet snail Buchling, CC BY-SA 3.0, via Wikimedia Commons
- Ramshorn snail Dat doris, CC BY-SA 4.0, via Wikimedia Commons
- Thai micro crab Sean Murray, CC BY-SA 2.0, via Wikimedia Commons
- Vampire shrimp Ray eye, CC BY-SA 3.0, via Wikimedia Commons
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