Shrimp may be your answer.
they eat small sea life.
Shrimp.
sand flea
A small crustacean, very like a shrimp but smaller.
No because a crustacean has a exoskeleton and a mussel has a shell
a crab is a crustacean
No. A bird is not a crustacean.
crustacean is not a decomposer
Blue whales are carnivores, feeding on small crustacean's, plankton, and any small fish that get caught up when feeding.
No, a frog is an amphibian, not a crustacean.
crustacean
Snails are actually mollusks and crustacean. They are very unique creatures.