Domestic mussels generally eat carrion, scavengers or tiny earthworms, bumper shrimp and so on.

Mussels are a kind of animals in mollusca, which are called mussel shells and tortoises in some places. They live at the bottom of freshwater lakes, ponds, rivers, etc. and are semi-buried in sediment. Meat is edible, and can also be used as bait for fish and poultry and feed for poultry and livestock. In some areas, freshwater pearl mussels are used for pearl cultivation, and Hyriopsis cumingii and Cremantria plicata are mainly used for pearl cultivation. The water inlet and outlet pipes at the back end of the mussel body are exposed, so that water can flow in and out of the jacket cavity, so as to complete the functions of feeding, breathing, excreting feces and metabolites, filtering tiny organisms and organic particles in the water, and eating small microorganisms.