They are very hard to tell apart. The cold breeze goes by in the mountains and as you look at the stream you see the rocks at the bottom. The water is fresh and cold. If you see a fish with a straight red line through it, it may be a rainbow trout. If so, it is a rainbow trout.
Rainbow trout eat many foods like crayfish and insects because they have such sharp teeth.
The rainbow trout has a stream-lined body with small scales and dark spots. It is a sport fish and a food fish. It has very good fighting ability and makes spectacular leaps like an acrobat when hooked. The rainbow trout is one of the best known fish. Males fertilize them, then the female covers the eggs with gravel.