Small: 5 to 20 cm
Sardines, anchovies, most aquarium fish and many reef fish. 116 fish.
GroupSharkRayCarpCatfishSalmonidHerringCodTunaPerch-likeCichlidReef fishEelFlatfishLivebearerAncientOther
WaterRivers and lakesEstuaries and mangrovesCoasts and shelvesCoral reefsOpen oceanDeep seaPolar and cold seasCaves and springsBetween sea and river
🇧🇷 Brazil and 3 moreBlue leopard corydoras
Small peaceful armoured catfish from South AmericaCatfish · Rivers and lakes
🇻🇪 Venezuela and 1 moreOtocinclus
Small South American armored catfishes known for algae eating and air breathing.Catfish · Rivers and lakes
🇧🇷 BrazilZebra pleco
Striped catfish from the Rio XinguCatfish · Rivers and lakes · 1991
🇺🇸 United StatesWidemouth blindcat
A pale, eyeless catfish from Texas aquifersCatfish · Rivers and lakes
🇹🇭 ThailandGlass catfish
A small, transparent freshwater catfish from Thailand.Catfish · Rivers and lakes · 2013
WorldBronze corydoras
Small armored catfish popular in home aquariumsCatfish · Rivers and lakes · 1858
🇧🇷 Brazil and 1 moreAncistrus
A genus of small, nocturnal freshwater catfish native to South America and Panama.Catfish · Rivers and lakes
🇵🇪 Peru and 1 morePanda corydoras
Small armoured catfish with distinctive black eye patchesCatfish · Rivers and lakes · 1971
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Blue leopard corydoras: NiKo at German Wikipedia, Public domain, source
- Otocinclus: CHUCAO, CC BY-SA 3.0, source
- Zebra pleco: Birger A, CC BY-SA 3.0, source
- Widemouth blindcat: Apokryltaros, CC BY-SA 4.0, source
- Glass catfish: Martin Fisch, CC BY-SA 2.0, source
- Bronze corydoras: Unknown author, Public domain, source
- Ancistrus: Unknown author, CC BY-SA 3.0, source
- Panda corydoras: Chronotopian, CC BY-SA 3.0, source