it eatsbugs
pigs and dophins
algae
A dragonfly larva eats tadpoles, fish, and other small animals it can find that can fit in its mouth.
An example of parisitism is of wasps and larvae of other insects. The wasps lay their eggs and when the larvae hatches it eats the other insect's larvae.
All varieties of trout are strongly attracted to midge larvae dry and semi-dry flies.
small mouth bass
Blackfly larvae are found in streams and rivers attached to rocks. The larvae are eaten by large insects such a mayflies, and stoneflies as well as small fish.
The Eurasian Ruffe's eats mainly zoobenthos, which include chironomids, small aquatic bugs and larvae.
Moth and butterfly larvae, as well as caterpillars eat rushes.
The common periwinkle is an omnivore. It mainly eats algae but sometimes eats small invertabrates like barnacle larvae.
Small fish, the larvae of the Diving Beetle, and Tadpoles.