fish pond is usually chosen in late May, and it is very good until the middle of June. In addition, there are two periods of time when fish fry can also be released, one is January-February after the year, and the other is July-August. Before releasing the fry, the pond must be cleaned and disinfected. Quicklime or bleaching powder can be used to sprinkle the whole pond, and then enough base fertilizer should be applied. After the plankton reproduce, the fry can be put in.
1. Carp: Carp is a benthic fish, so it is very suitable for intercropping, and its feeding habits are more miscellaneous, it can eat the bait that other fish have not eaten up, so it will reduce water pollution. Its growth has a certain relationship with the temperature, when the temperature is high, the growth rate is faster.
2. Grass carp: Grass carp is a kind of herbivorous fish. It lives in the middle and lower layers of the water. It does not compete with other fish for bait and grows faster. Moreover, its digestive ability is general, and the excretion of feces can promote the reproduction of plankton, thus providing certain nutrients for filter-feeding fish.
3. Silver carp: Silver carp is in the middle and upper layers of the water body, separated from grass carp and carp, and belongs to filter-feeding fish, so they will not disturb each other. This kind of fish is large, nutritious and easy to raise, so it is very suitable for intercropping.
