probally goliath tiger fish and monk noses
Trouts live in river PO
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Google River Mole and you will find all kinds of information on this.
Reports on the Sacramento River say that it holds 46 to 60 different species of fish. Some of the river's tributaries are the Pit River, Clear Creek, the Putah Creek, and the Feather River.
See the link in the related links, and u will find the fish around the harbor and the river[s]
why are there so many kinds of fish
Yes, it is bad to put tropical fish in with river fish. The river fish can make the tropical fish sick.
Yes, you can fish in the Colorado River.
Rhine River fish.
samon
Yes, the Nile River does have fish. Approx. over 100 fish.
According to Wikipedia, The Great Fish River was given the name 'Great' to distinguish it from a river that was already called the Fish River in Namibia.