China is rich in freshwater fish resources, coupled with artificial breeding, and the market supply is sufficient. Among them, carp, silver carp, grass carp and herring are the most common, in addition to eel and catfish.

Carp is a good freshwater fish with white scales and metallic luster, red tail, tender meat and delicious taste. Yellow River carp is particularly popular.

Grass carp, also known as grass green and yellow-brown, is one of the most productive freshwater fish. This kind of fish is characterized by fast growth, heavy weight and fat head, but its meat quality is rough, which is not as good as carp.

Silver carp can be divided into silver carp and silver carp (commonly known as chubby fish) Silver carp has light color, small scales, big head, fat meat, delicious taste and the fattest head, which is especially suitable for making casserole fish heads.

Carassius auratus, also known as golden crucian carp, is flat and wide in shape, with obvious hump on the back and small scales. It is characterized by tender meat and great taste, but it has many small thorns. Crucian carp is best for soup. Small crucian carp is suitable for crispy fish.

Black herring, also known as black fin, is a kind of tender meat in freshwater fish with cylindrical body length, black spines, milky white abdomen and full white meat. It contains a lot of fat, especially pectoral fins and head and tail. The lungs of herring are the most tender part of fish and contain a lot of fat. The famous dish "Burn Bald Lung" is made of herring's lung. When cooked, it is delicious while it is hot.

Eel, also known as long fish and eel, is long and thin, with thick head and thin tail, dark brown back, yellow abdomen and small scaleless eyes. This kind of fish is extremely delicate and delicious, and is regarded as the best fish.

Catfish, also known as soft-shelled turtle, is a kind of advanced tonic with tender meat and rich nutrition.