Small: 5 to 20 cm
Sardines, anchovies, most aquarium fish and many reef fish. 104 fish.
GroupSharkRayCarpCatfishSalmonidHerringCodTunaPerch-likeCichlidReef fishEelFlatfishLivebearerAncientOther
WaterRivers and lakesEstuaries and mangrovesCoasts and shelvesCoral reefsOpen oceanDeep seaPolar and cold seasCaves and springsBetween sea and river
🇲🇽 Mexico and 3 moreXiphophorus
A genus of small livebearing fish native to Mexico and Central America, known for aquarium use and genetic research.Livebearer · Rivers and lakes
WorldKillifish
Small egg-laying fish known for hardiness and short lifespansLivebearer · Rivers and lakes
South AsiaGreen spotted puffer
Small brackish water pufferfish with a tiny genomeOther · Rivers and lakes
🇰🇭 Cambodia and 1 moreFigure 8 puffer
A small brackish water pufferfish with distinctive eye-like markings.Other · Rivers and lakes
🇮🇩 IndonesiaCelebes rainbowfish
A small, transparent silverside from Sulawesi streams.Other · Rivers and lakes
🇲🇽 Mexico and 2 moreMexican molly
Small livebearing fish from Mexico and Central America.Livebearer · Rivers and lakes
🇺🇸 United States and 1 moreSailfin molly
Small livebearing fish with a large dorsal fin in males.Livebearer · Rivers and lakes · 1821
🇲🇽 Mexico and 1 moreGreen swordtail
A hardy live-bearing fish popular in home aquariums.Livebearer · Rivers and lakes · 1848
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Xiphophorus: Marrabbio2, CC BY-SA 3.0, source
- Killifish: TinoStrauss, CC BY-SA 3.0, source
- Green spotted puffer: Starseed, CC BY-SA 3.0 de, source
- Figure 8 puffer: ColdmachineUK, CC BY 2.5, source
- Celebes rainbowfish: Shigella dysenteriae at English Wikipedia, CC BY-SA 3.0, source
- Mexican molly: Taken by Darkmax, CC BY-SA 3.0, source
- Sailfin molly: (c) Nick Tobler (Cowturtle), some rights reserved (CC BY), CC BY 4.0, source
- Green swordtail: Bastet78, CC BY-SA 3.0, source