European crucian carp
Carassius auratus is one of the most common freshwater fish in China, which lives in the main river system outside the Qinghai-Tibet Plateau. Crucian carp (Carassius auratus) is an omnivorous fish with wide feeding habits, strong adaptability, strong reproductive ability, strong disease resistance, fast growth, low requirements for water temperature and easy reproduction. It is an important cultured fish in China.
carp
Carps have huge scales and two beards on each side of the upper palate. They live alone or in groups in ponds, lakes and rivers, with quiet and overgrown mud at the bottom. There is a habit of migration in small waters.
Grass carp; Buji fish
Grass carp (Ctenopharyngodon idellus) is a typical herbivorous fish, which lives in rivers and lakes in plain areas, and generally prefers to live in the middle and lower layers of water bodies and coastal areas with more aquatic plants. Sexually active, swimming fast, often foraging in groups. Grass carp eat larvae, algae, etc. In the juvenile stage, grass carp also eat some carnivorous foods, such as earthworms and dragonflies. Widely distributed, from Heilongjiang to Yuanjiang in China (except Tibet and Xinjiang). Transplanted to Asia, Europe, America, Africa and other countries.