Poeciliidae

The guppy
Image by Carlos Eduardo Joos is licensed under CC BY 2.0The guppy CC BY 2.0The guppy CC BY 2.0

Characidae

Neonsalmler Paracheirodon innesi

Loricariidae

Otocinclus
Image by Nico Hernandez is licensed under CC BY 4.0Otocinclus CC BY 4.0Otocinclus CC BY 4.0

Osphronemidae

betta splendens
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Cichlidae

Apistogramma cacatuoides
Image by Redspider is licensed under CC BY-SA 3.0Apistogramma cacatuoides CC BY-SA 3.0Apistogramma cacatuoides CC BY-SA 3.0Apistogramma cacatuoides CC BY-SA 3.0

Procatopodidae

Aplocheilichthys normani 3
Image by Cisamarc is licensed under CC BY-SA 3.0Aplocheilichthys normani 3 CC BY-SA 3.0Aplocheilichthys normani 3 CC BY-SA 3.0Aplocheilichthys normani 3 CC BY-SA 3.0

Cyprinidae

Cyprinidae Sahyadria denisonii 1.2
Image by NasserHalaweh is licensed under CC BY-SA 4.0Cyprinidae Sahyadria denisonii 1.2 CC BY-SA 4.0Cyprinidae Sahyadria denisonii 1.2 CC BY-SA 4.0Cyprinidae Sahyadria denisonii 1.2 CC BY-SA 4.0