Bronze corydoras
Peaceful · Bottom · easy care
- 2.75 in adult
- 20+ gal
- 72–80 °F
- pH 6 to 8
- groups of 6+
Bottom-dwelling fish
Fish that live and feed at the bottom of the tank. They need sinking food of their own; most prefer sand or smooth gravel.
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+
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
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
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+
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
Bolivian ram
Peaceful · Bottom · easy care
- 3.2 in adult
- 29+ gal
- 72–80 °F
- pH 6 to 8
- alone or pair
Bumblebee catfish
Peaceful · Bottom · easy care
- 2.4 in adult
- 20+ gal
- 70–77 °F
- pH 6 to 7.5
- alone or pair
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
Chinese algae eater
Semi-aggressive · Bottom · easy care
- 11 in adult
- 75+ gal
- 72–82 °F
- pH 6 to 8
- alone or pair
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
Common pleco
Peaceful · Bottom · moderate care
- 18 in adult
- 125+ gal
- 72–82 °F
- pH 6.5 to 7.8
- alone or pair
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+
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+
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+
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+
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+
Featherfin squeaker
Semi-aggressive · Bottom · easy care
- 11.8 in adult
- 75+ gal
- 72–79 °F
- pH 6.5 to 8
- alone or pair
Fire eel
Semi-aggressive · Bottom · demanding care
- 39 in adult
- 180+ gal
- 75–82 °F
- pH 6.5 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
Flying fox
Semi-aggressive · Bottom · easy care
- 6 in adult
- 40+ gal
- 72–79 °F
- pH 6 to 7.5
- one per tank
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
Green phantom pleco
Peaceful · Bottom · moderate care
- 5.9 in adult
- 40+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Jack Dempsey
Aggressive · Bottom · moderate care
- 10 in adult
- 75+ gal
- 72–82 °F
- pH 6.5 to 8
- 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+
Kubotai loach
Peaceful · Bottom · moderate care
- 5.9 in adult
- 40+ gal
- 77–86 °F
- pH 6 to 7.5
- groups of 5+
Leopard frog pleco
Peaceful · Bottom · moderate care
- 2.4 in adult
- 20+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
Ornate bichir
Semi-aggressive · Bottom · moderate care
- 24 in adult
- 180+ gal
- 75–82 °F
- pH 6.5 to 7.5
- alone or pair
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+
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+
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 shark
Semi-aggressive · Bottom · easy care
- 6 in adult
- 55+ gal
- 72–80 °F
- pH 6.5 to 7.5
- one per tank
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 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 catfish
Semi-aggressive · Bottom · demanding care
- 48 in adult
- 2600+ gal
- 72–80 °F
- pH 6 to 7.5
- one 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
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
Sailfin pleco
Peaceful · Bottom · easy care
- 20 in adult
- 150+ gal
- 72–82 °F
- pH 6.5 to 7.8
- alone or pair
Salt-and-pepper corydoras
Peaceful · Bottom · moderate care
- 1 in adult
- 10+ gal
- 72–79 °F
- pH 6 to 7.5
- groups of 6+
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
Senegal bichir
Semi-aggressive · Bottom · easy care
- 14 in adult
- 75+ gal
- 75–84 °F
- pH 6.5 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+
Siamese algae eater
Peaceful · Bottom · easy care
- 6 in adult
- 29+ gal
- 72–80 °F
- pH 6.5 to 7.5
- alone or pair
Snowball pleco
Peaceful · Bottom · moderate care
- 5 in adult
- 30+ gal
- 77–84 °F
- pH 6 to 7.5
- alone or pair
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
Twig catfish
Peaceful · Bottom · demanding care
- 8.9 in adult
- 30+ gal
- 72–79 °F
- pH 6 to 7.5
- alone or pair
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
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+
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
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 beginnersBetta tank matesGoldfish tank matesAngelfish tank matesShrimp-safe fishCold-water fishSchooling 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. 76 of these 76 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.
- Bronze corydoras 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
- 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
- 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 ghost knifefish Vassil, CC0, via Wikimedia Commons
- Bolivian ram HenryC88, CC BY-SA 4.0, via Wikimedia Commons
- Bumblebee catfish CHUCAO, CC BY-SA 4.0, 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
- Chinese algae eater Pseudogastromyzon, Public domain, via Wikimedia Commons
- Clown loach Vlad Butsky, CC BY 2.0, via Wikimedia Commons
- Common pleco Richwales, Public domain, via Wikimedia Commons
- Convict cichlid S. Olkowicz, CC BY 2.5, via Wikimedia Commons
- Convict julie Regani, 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
- Dojo loach PrinceNimblesoft, CC0, via Wikimedia Commons
- Dwarf chain loach Stefan Maurer, CC BY-SA 2.0, 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
- Everglades pygmy sunfish Brian Gratwicke, CC BY 2.0, via Wikimedia Commons
- Featherfin squeaker Silex6, Public domain, via Wikimedia Commons
- Fire eel Llandor, CC BY-SA 3.0, via Wikimedia Commons
- Firemouth cichlid H. Zell, CC BY-SA 3.0, via Wikimedia Commons
- Flying fox Mirko Hartig, CC BY-SA 2.0 de, 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
- Green phantom pleco 5snake5, CC0, via Wikimedia Commons
- Jack Dempsey Sviemeister (English Wikipedia), CC BY 2.5, 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
- Kubotai loach Lerdsuwa, CC BY-SA 3.0, via Wikimedia Commons
- Leopard frog pleco Frank M Greco, CC BY 3.0, via Wikimedia Commons
- Ornate bichir Bloopityboop, CC BY-SA 4.0, 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
- Peppered corydoras Przemysław Malkowski, CC BY 2.5, via Wikimedia Commons
- Petricola catfish Nerezza, CC BY-SA 3.0, via Wikimedia Commons
- Pictus catfish 5snake5, CC0, via Wikimedia Commons
- Pitbull pleco Haplochromis, CC BY-SA 3.0, via Wikimedia Commons
- Rainbow shark MerlinSenger, CC BY-SA 3.0, via Wikimedia Commons
- Red lizard whiptail catfish Ckf6412, CC BY-SA 4.0, via Wikimedia Commons
- Red zebra cichlid Maha Dinesh, CC BY-SA 3.0, via Wikimedia Commons
- Red-tail catfish George Chernilevsky, CC BY-SA 4.0, 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
- 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
- Sailfin pleco AnatolyPm, CC BY-SA 4.0, via Wikimedia Commons
- Salt-and-pepper corydoras D.W., CC0, via Wikimedia Commons
- Saulosi cichlid Gerard Delany, CC BY-SA 2.5, via Wikimedia Commons
- Scarlet badis ATuin-hek, CC0, via Wikimedia Commons
- Senegal bichir Zhyla at English Wikipedia, CC BY-SA 3.0, via Wikimedia Commons
- Shell-dweller cichlid Richard A. Ingebrigtsen, CC BY-SA 3.0, via Wikimedia Commons
- Siamese algae eater aleander2137, CC BY-SA 4.0, 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
- Twig catfish Francesco Loda (CONTERALLY), CC BY 3.0, via Wikimedia Commons
- Umbrella dwarf cichlid Gordon Axmann, CC BY-SA 3.0, via Wikimedia Commons
- Venustus cichlid Mike Peel, CC BY-SA 4.0, 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
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