Neon tetra
Peaceful · Middle · easy care
- 1.6 in adult
- 10+ gal
- 70–79 °F
- pH 6 to 7.5
- groups of 6+
Betta tank mates
These share a betta’s warm water and leave its fins alone. Bettas differ: watch the first days, and have a backup plan if your betta attacks tankmates. A 10 gallon or larger tank is the usual minimum for a betta with company.
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+
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+
Otocinclus
Peaceful · Bottom · moderate care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- 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+
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+
German blue ram
Peaceful · Bottom · demanding care
- 3 in adult
- 20+ gal
- 78–85 °F
- pH 5 to 7
- 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
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
Bandit corydoras
Peaceful · Bottom · easy care
- 1.9 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7
- groups of 6+
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-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+
Bloodfin tetra
Peaceful · Top · easy care
- 2.2 in adult
- 20+ gal
- 65–82 °F
- pH 6 to 8
- groups of 6+
Brilliant rasbora
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 72–79 °F
- pH 5.5 to 7
- groups of 8+
Clown killifish
Peaceful · Top · moderate care
- 1.4 in adult
- 5+ gal
- 72–80 °F
- pH 5.5 to 7
- groups of 4+
Coral red pencilfish
Peaceful · Middle · moderate care
- 1.1 in adult
- 10+ gal
- 75–82 °F
- pH 5 to 7
- groups of 8+
Diamond tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 5.5 to 7.5
- groups of 6+
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+
Emperor tetra
Peaceful · Middle · easy care
- 2 in adult
- 20+ gal
- 73–81 °F
- pH 6 to 7.5
- groups of 6+
Forktail blue-eye rainbowfish
Peaceful · Top · moderate care
- 2 in adult
- 10+ gal
- 72–80 °F
- pH 7 to 8
- groups of 6+
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+
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+
Julii corydoras
Peaceful · Bottom · easy care
- 2.5 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 8
- groups of 6+
Kerri tetra
Peaceful · Middle · easy care
- 1.1 in adult
- 20+ gal
- 75–81 °F
- pH 6 to 7.5
- groups of 6+
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
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+
Peacock gudgeon
Peaceful · Bottom · easy care
- 3 in adult
- 15+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 4+
Penguin tetra
Peaceful · Middle · easy care
- 2.4 in adult
- 20+ gal
- 72–82 °F
- pH 6 to 7.5
- groups of 6+
Pitbull pleco
Peaceful · Bottom · moderate care
- 1.6 in adult
- 20+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 3+
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+
Rosy tetra
Peaceful · Middle · easy care
- 1.3 in adult
- 15+ gal
- 75–82 °F
- pH 6 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+
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
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+
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
Assassin snail
Peaceful · Bottom · easy care
- 1 in adult
- 5+ gal
- 72–80 °F
- pH 7 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
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
Ramshorn snail
Peaceful · Bottom · easy care
- 1 in adult
- 5+ gal
- 64–82 °F
- pH 7 to 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 tankFish for a 125 gallon tankBest fish for beginnersGoldfish 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. 50 of these 62 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
- 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
- Cardinal tetra CHUCAO, CC BY-SA 3.0, via Wikimedia Commons
- Ember tetra Klaus Rudloff, CC BY-SA 4.0, via Wikimedia Commons
- Otocinclus CHUCAO, CC BY-SA 3.0, 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
- 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
- German blue ram Eric Mengel, Public domain, via Wikimedia Commons
- Cockatoo dwarf cichlid William Kreijkes, CC BY-SA 3.0, via Wikimedia Commons
- Agassiz's dwarf cichlid Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
- Bandit corydoras Gonzalo Valenzuela, CC BY-SA 2.0, via Wikimedia Commons
- Black phantom tetra Krächz, CC BY 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
- Bloodfin tetra VGW2006, Public domain, via Wikimedia Commons
- Brilliant rasbora Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Clown killifish Dornenwolf, CC BY 2.0, via Wikimedia Commons
- Coral red pencilfish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Diamond tetra SOK, CC BY-SA 4.0, 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
- Emperor tetra 7TP (Krzysztof Bartosik), CC BY-SA 4.0, via Wikimedia Commons
- Forktail blue-eye rainbowfish Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Golden dwarf cichlid Borkowski.robert, CC BY-SA 4.0, via Wikimedia Commons
- Head and tail light tetra Deadlyballistics (English Wikipedia), Public domain, via Wikimedia Commons
- Julii corydoras Bob Jenkins, CC BY 2.0, via Wikimedia Commons
- Kerri tetra Juan R. Lascorz, 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
- 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
- Peacock gudgeon Dirk Godlinski, CC BY-SA 3.0, via Wikimedia Commons
- Penguin tetra Kkonstan, CC BY 3.0, via Wikimedia Commons
- Pitbull pleco Haplochromis, CC BY-SA 3.0, via Wikimedia Commons
- Rosy tetra Aquakeeper14, CC BY-SA 3.0, via Wikimedia Commons
- Sterbai corydoras Matthew Mannell, Public domain, via Wikimedia Commons
- Umbrella dwarf cichlid Gordon Axmann, CC BY-SA 3.0, 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
- 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
- Assassin snail Steffi Klee, 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
- 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
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