New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧

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
Knodus Meridae
Knodus meridae
Stevardiidae Near Threatened
Knodus Mizquae
Knodus mizquae
Stevardiidae Data Deficient
Knodus Moenkhausii
Knodus moenkhausii
Stevardiidae Least Concern
Knodus Orteguasae
Knodus orteguasae
Stevardiidae Data Deficient
Knodus Pasco
Knodus pasco
Stevardiidae Least Concern
Knodus Savannensis
Knodus savannensis
Stevardiidae Least Concern
Knodus Septentrionalis
Knodus septentrionalis
Stevardiidae Least Concern
Knodus Shinahota
Knodus shinahota
Stevardiidae Critically Endangered
Knodus Smithi
Knodus smithi
Stevardiidae Least Concern
Knodus Tanaothoros
Knodus tanaothoros
Stevardiidae Least Concern
Knodus Tiquiensis
Knodus tiquiensis
Stevardiidae Least Concern
Knodus Victoriae
Knodus victoriae
Stevardiidae Least Concern
Knodus Weitzmani
Knodus weitzmani
Stevardiidae Least Concern
Knodus Ytuanama
Knodus ytuanama
Stevardiidae
Knoepffler's Elephantfish
Boulengeromyrus knoepffleri
Mormyridae Least Concern
Knout goby
Mesogobius batrachocephalus
Gobiidae Least Concern
Kokoda glass perchlet
Tetracentrum caudovittatus
Ambassidae Critically Endangered
Kokoda mogurnda
Mogurnda lineata
Eleotridae Endangered
Kokraimoro tube-snouted ghost knifefish
Sternarchorhynchus kokraimoro
Apteronotidae Vulnerable
Kokuni
Chrysichthys cranchii
Bagridae Least Concern
Kola rainbowfish
Melanotaenia kolaensis
Melanotaeniidae Least Concern
Kolpotocheirodon Figueiredoi
Kolpotocheirodon figueiredoi
Critically Endangered
Kolpotocheirodon Theloura
Kolpotocheirodon theloura
Near Threatened
Kolus
Hypselobarbus kolus
Cyprinidae Vulnerable
Kongoro lampeye
Lacustricola kongoranensis
Poeciliidae Least Concern
Konti barb
Osteochilichthys thomassi
Least Concern
Konye
Konia eisentrauti
Cichlidae Critically Endangered
Kor scraper
Capoeta macrolepis
Cyprinidae
Koragu tank goby
Glossogobius koragensis
Gobiidae Least Concern
Korean bittering
Tanakia signifer
Cyprinidae
Korean Bullhead
Tachysurus sinensis
Bagridae Least Concern
Korean lamprey
Eudontomyzon morii
Petromyzontidae Least Concern
Korean stumpy bullhead
Coreobagrus brevicorpus
Bagridae Vulnerable
Koreocobitis Naktongensis
Koreocobitis naktongensis
Korhi barb
Hypselobarbus micropogon
Cyprinidae Endangered Edible
Korogwe tilapia
Oreochromis korogwe
Cichlidae Least Concern
Kosciuszko Galaxias
Galaxias supremus
Galaxiidae Critically Endangered
Koshi Nangra
Nangra assamensis
Least Concern
Kosogol grayling
Thymallus nigrescens
Salmonidae
Kosswig's barb
Carasobarbus kosswigi
Cyprinidae Vulnerable
Kosswig's loach
Turcinoemacheilus kosswigi
Nemacheilidae Least Concern
Kottelat rasbora
Rasbora hobelmani
Cyprinidae Edible
Kottelatia Brittani
Kottelatia brittani
Least Concern
Kottelatlimia Hipporhynchos
Kottelatlimia hipporhynchos
Cobitidae Least Concern
Kottelatlimia Katik
Kottelatlimia katik
Cobitidae Least Concern
Kottelatlimia Pristes
Kottelatlimia pristes
Cobitidae Vulnerable
Kreiser's Killifish
Profundulus kreiseri
Profundulidae Vulnerable
Kribi killi
Fundulopanchax fallax
Nothobranchiidae Endangered Edible