Trout are built to feed off the surface and between the surface and the bottom. They may find something on the bottom once in a while, but that is not normally where they feed.
When it comes to that of feeding of rainbow trout they have a very varied diet and they usually catch up pupal, larval and adult form of aquatic insects. They sometimes feed up on fish eggs and some of the terrestrial insects which we can nearly name as ants, beetles, grasshoppers, crickets etc.
Notable details of bottom feeder
When it comes to the world of game fishing rainbow trout and steelhead are very watch regarded once. Due to the uniqueness of its eyes it attracts lot of fly fishers and angling methods towards them. Rainbow trout is considered to that of hardest trout fishes to catch up. Not in the normal sense. Bottom feeders like carp, suckers, and catfish have a ventral mouth—one that points downward—or barbells (loose skin that looks like mustaches), or both, making it easy for them to feel along the bottom of the water they’re in and scoop up whatever they find to eat.
Examples of bottom feeding fish species groups are flatfish (halibut, flounder, plaice, sole), eels, cod, haddock, bass, grouper, carp, bream (snapper) and some species of catfish and shark. One must understand the meaning of bottom feeder. Basically bottom feeder refers to that of a fish or particular aquatic creature which feeds on the bottom of its habitat.
A bottom feeder can be described as an aquatic animal which feeds on or we can say say on the bottom of the body of water. Bottom feeders are aquatic creatures feed by fully being under water.