can be mixed in one mu of fish pond? About 400-1200 fish can be mixed in one mu of fish pond. The reason for the difference is that the main fish species are different. If it is mainly grass carp, one mu can raise 400-600, with 200 silver carp and 50 carp. If it is mainly carp, 300 can be raised, with 80 silver carp and 20 bighead carp. In addition, it can also raise Wuchang fish, which can raise 1000 fish per eye, with 150 silver carp and 50 bighead carp.
of polyculture in fish ponds? 1. Use of space: The living environment of fish in the water is different, some will be in the upper activities, some in the middle activities, and some in the bottom. If only one kind of fish is kept, only one layer of water is occupied, and other places are relatively empty. Polyculture, on the other hand, allows fish to be found in the upper, middle and lower water bodies, making full use of space.
2. Cost reduction: Different fish have different feeding habits. If only one fish is raised, specific feed must be prepared. But polyculture is different, such as feeding grass carp grass, its feces will provide nutrients for plankton, promote its growth and reproduction, and these organisms are good meals for filter-feeding fish.
3. Increase the income: The polyculture of fish ponds not only reduces the cost, but also increases the income, because the same fish pond raises more fish species, the yield is higher, and the cost is not very high, so the income is increased to a certain extent.
