Silver carp and bighead carp are also called silver carp, silver carp, Baotou fish, bighead carp and black silver carp (in some places, they are also called male fish), which looks like silver carp and has a flat side. It is a freshwater fish. The head is large and wide, the head length is about 1/3 of the body length, the mouth is also wide, slightly upturned, and the eye position is low. Silver carp and bighead carp filter algae, zooplankton and organic garbage.

Features: the mouth is also wide, slightly upturned, and the eye position is low.

Silver carp and bighead carp are called plankton-eating fish. They feed on algae, zooplankton and organic debris through gill rakes. The food composition varies with the food sources in the environment, but it is difficult to eat food particles < < 10 um.

Silver carp and bighead carp are also used to control a large number of cyanobacteria in water, which is called non-classical biological manipulation technology. Silver carp and bighead carp are also used in water conservation fisheries or clean water fisheries.