1. Natural spawning and reproduction. Put parent loaches in the spawning pool. When the water temperature rises above 18°C, place sterilized palm slices, willow roots, aquatic plants, etc. in the pool as fish nests. After it is discovered that the loach has laid eggs, the fish nest with eggs attached is transferred to the hatching tank, and a new fish nest is placed at the same time until it lays eggs again. The incubation of fertilized eggs does not have high requirements on water quality and temperature. It can be hatched in general breeding water bodies. The optimal water temperature is 20℃-28℃. It takes about 2 days for the eggs to hatch.

2. Artificial induction of labor and reproduction. When the temperature is suitable from April to May, catch the broodstock and select broodstock with soft abdomen, slightly pink color and signs of spawning. The body length is 12cm and the weight is more than 20g, preferably around 40g. Individuals undergo medication to induce labor. Then put the parent loaches after induction of spawning into the spawning pool, and let them lay eggs and be fertilized by themselves or perform artificial insemination. Finally, the fertilized eggs are placed in the nest and entered into the incubation pool for hatching. This method can obtain loach seedlings on time and in large quantities in a planned manner.

3. Release seeds to supplement breeding. That is to say, an appropriate amount of mature loaches are put into the water body for raising loaches, but other fish cannot be released first. During the reproductive season, some artificial fish nests are placed. The loaches lay eggs in the breeding pond and hatch in the original pond. The seedlings can be cultivated in small boxes and then still Raised in native ponds.