Crabs, eat small fish shrimps, seaweed animals and even dead plants are all eaten, and any food that crabs' claws can get can be eaten. But crab's favorite food is small fish and shrimp. If it is a domestic crab, you can feed it some grass food, such as Sophora alopecuroides and Elodea.

Monopterus albus, also often called eel, is an omnivorous fish mainly based on animals, and likes to eat earthworms, mussels, stuffed meat, fish and so on. Young eels eat egg yolks, worms and earthworms. Young eels feed on caterpillars, earthworms, rotifers, cladocera and swallows. Adult eels mainly eat earthworms, small miscellaneous fish, snails, mussels, shrimps, tadpoles, frogs and insects. 1, wild eel. Wild Monopterus albus generally preys on small fish, frogs and shrimps. In the water, sometimes I drink water.