Bream is one of the main freshwater fish in China. The length of this fish is about 40 centimeters, the whole is diamond-shaped, the back is blue-gray, the sides are silver-gray, and the abdomen is silver-white. It is suitable for growth in still water, mainly distributed in the middle and lower reaches of the Yangtze River subsidiary lakes, its growth rate is very fast, adaptability is also good, feeding habits are relatively wide.
Carassius auratus is widely distributed in China, and is found in all major river systems except the Qinghai-Tibet Plateau. As an omnivorous fish, it has a wide range of feeding habits, strong adaptability and fertility, and low requirement for water temperature, which is very suitable for aquaculture. And raise it to use the way that cover raises more, can wait with herring, grass carp raise together.
Grass carp is one of the four major Chinese carps in China, and it is also a rare herbivorous fish. It usually inhabits the plain area, and generally lives in the middle and lower layers of the water body. Its nature is relatively lively. It mainly feeds on algae and insect larvae in the juvenile stage, and eats plant debris when it grows up, occasionally eating some meat. Raise it to be able to cast feed green grass feed, match concentrated feed.
The body of the mylopharyngodon piceus is bluish gray, the back is darker, the abdomen is grayish white, and the fins are black. It usually inhabits the middle and lower layers of the water, mostly snails, mussels and clams for food, although it is carnivorous fish, but can be fed artificial feed, such as cicada pupa, corn, bean cake and so on as food.
