Crucian carp is mainly an omnivorous fish that feeds on plants. It likes to live in groups and chooses food. Crucian carp is an omnivorous fish living in fresh water, and its life level belongs to the bottom fish. In general, they swim, feed and inhabit underwater. When the air temperature and water temperature are high, they will also swim and feed in the middle and lower layers and upper layers of water.

2. Grass carp

Grass carp generally prefer to live in the middle and lower layers of rivers, lakes and other waters and near-shore areas with many aquatic plants. With the habit of river and lake migration, grass carp often forages in groups and is gluttonous, which is a typical herbivorous fish. The larvae feed on zooplankton, while the larvae feed on insects, earthworms, algae and duckweed.

3. Silver carp

Silver carp is a typical filter-feeding fish. Silver carp is a pelagic fish. Silver carp mainly feeds on plankton, and mainly eats zooplankton in the fry stage. When it grows up, it gradually turns to eat phytoplankton, and likes to eat grass carp feces and chicken and cow dung. Soybean dregs powder, bran and rice bran are mixed with artificial microparticles.

4. Bighead carp

Bighead carp, also known as silver carp, grows in freshwater lakes, rivers, reservoirs and ponds. Most of them are distributed in the middle and upper layers of freshwater areas, and they are filter-feeding. They mainly eat zooplankton such as rotifers, cladocera, copepods (such as cyclops), but also some phytoplankton (such as diatoms and cyanobacteria) and artificial feed. They are typical plankton-feeding fish.

5. herring

Black herring is inactive and usually lives in the middle and lower layers of water. Its food is mainly snails, clams, clams, etc., and it also preys on shrimp and insect larvae. In the fry stage, they mainly feed on zooplankton.

6. mandarin fish

Siniperca chuatsi is a fierce carnivorous fish, which often feeds on other fish. Young fish like to eat fish and shrimp, while adult fish mainly eat fish and stop eating in winter. It often inhabits the bottom of still water or slow water, overwinters in deep water in winter, and often forages in shallow coastal waters after the weather gets warmer in spring, mostly at night.