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Freshwater Fish Species

All freshwater fish species found in rivers, lakes, streams, and ponds worldwide. From tiny tetras to the giant arapaima — covering every continent.

18,067
Total Species
1,926
Endangered (EN+CR)
1,910
Edible Species
204
Families
Filtered Least Concern ✕ Clear all
Moon fish
Citharinus citharus
Citharinidae Least Concern Edible
Mooneye
Hiodon tergisus
Hiodontidae Least Concern
Moonfish
Citharinus eburneensis
Citharinidae Least Concern
Moonlight gourami
Trichopodus microlepis
Osphronemidae Least Concern
Morari
Cabdio morar
Cyprinidae Least Concern
Morenita
Gymnotus pantanal
Gymnotidae Least Concern
Moresby mogurnda
Mogurnda pulchra
Eleotridae Least Concern
Mormyrid
Petrocephalus bovei
Mormyridae Least Concern
Mormyrids
Mormyrus rume
Mormyridae Least Concern Edible
Mormyrids
Petrocephalus simus
Mormyridae Least Concern Edible
Mormyrops Attenuatus
Mormyrops attenuatus
Mormyridae Least Concern
Mormyrops Boulengeri
Mormyrops boulengeri
Mormyridae Least Concern
Mormyrops Curtus
Mormyrops curtus
Mormyridae Least Concern
Mormyrops Engystoma
Mormyrops engystoma
Mormyridae Least Concern
Mormyrops Furcidens
Mormyrops furcidens
Mormyridae Least Concern
Mormyrops Lineolatus
Mormyrops lineolatus
Mormyridae Least Concern
Mormyrops Mariae
Mormyrops mariae
Mormyridae Least Concern
Mormyrops Masuianus
Mormyrops masuianus
Mormyridae Least Concern
Mormyrops Nigricans
Mormyrops nigricans
Mormyridae Least Concern
Mormyrops Sirenoides
Mormyrops sirenoides
Mormyridae Least Concern
Mormyrops Zanclirostris
Mormyrops zanclirostris
Mormyridae Least Concern
Mormyrus Caschive
Mormyrus caschive
Mormyridae Least Concern
Mormyrus Macrophthalmus
Mormyrus macrophthalmus
Mormyridae Least Concern Edible
Mormyrus Ovis
Mormyrus ovis
Mormyridae Least Concern
Mormyrus tube-snouted ghost knifefish
Sternarchorhynchus mormyrus
Apteronotidae Least Concern
Morse Knifefish
Gymnorhamphichthys hypostomus
Rhamphichthyidae Least Concern
Mortimer's happy
Sargochromis mortimeri
Cichlidae Least Concern
Mosaic corydoras
Brochis haraldschultzi
Least Concern
Mosquitofish
Gambusia affinis
Poeciliidae Least Concern
Moth Whiptail Catfish
Loricaria simillima
Loricariidae Least Concern
Mottled bichir
Polypterus weeksii
Polypteridae Least Concern
Mottled ctenopoma
Ctenopoma weeksii
Anabantidae Least Concern Edible
Mottled sculpin
Cottus bairdii
Cottidae Least Concern
Mountain barbel
Amphilius platychir
Amphiliidae Least Concern
Mountain brook lamprey
Ichthyomyzon greeleyi
Petromyzontidae Least Concern
Mountain Galaxias
Galaxias olidus
Galaxiidae Least Concern
Mountain grunter
Hephaestus habbemai
Terapontidae Least Concern
Mountain hardyhead
Craterocephalus nouhuysi
Atherinidae Least Concern
Mountain madtom
Noturus eleutherus
Ictaluridae Least Concern
Mountain redbelly dace
Chrosomus oreas
Cyprinidae Least Concern
Mountain shiner
Lythrurus lirus
Cyprinidae Least Concern
Mountain sucker
Pantosteus platyrhynchus
Least Concern
Mountain whitefish
Prosopium williamsoni
Salmonidae Least Concern
Mourning tetra
Brycon pesu
Bryconidae Least Concern Edible
Mouse Catfish
Tenellus leporhinus
Doradidae Least Concern
Mousetail knifefish
Gymnorhamphichthys rondoni
Rhamphichthyidae Least Concern
Moustached Danio
Danio dangila
Cyprinidae Least Concern
Mouth Almighty
Glossamia aprion
Apogonidae Least Concern