If you want to raise grass carp well, you must choose healthy and lively high-quality fish. Parents of self-propagating and self-rearing fish should come from qualified raw material farms recognized by the state. The fry culture is pollution-free, the quality meets the relevant standards, and the variety is excellent. If the conditions are met, it is best to self-reproduce and self-reproduce. If the fish is imported from other places, it must pass quarantine before it can be introduced.