1. Choose parent fish: If you want zebrafish to reproduce, you should choose mature parent fish. Under normal circumstances, zebrafish can mature in about 3-5 months. Breeders should also pay attention to appearance, color and character when selecting.

2. Preparation tools: When zebrafish breed, breeders need to prepare a separate container for them first. This can ensure that they will not be disturbed when breeding, and prepare heating rods and oxygen pumps for them to keep their living environment stable.

3, mating and breeding: Breeders can choose 2-3 pairs of parent fish and ensure that they live in a comfortable environment. After they are in heat, they will lay eggs on the second or third day. After the female fish lays eggs, the male fish will come forward to inseminate immediately. Fertilized fish eggs will become transparent, while unfertilized fish eggs will become white. Breeders need to clean up unfertilized fish eggs.

4. Hatching: Fertilized fish eggs need to be hatched in water temperature between 24-28 ℃, and breeders need to wait for 2-3 days before small fish can hatch successfully.

1. Quiet environment: Zebrafish are timid, especially when they breed. Breeders need to ensure that their breeding environment is quiet to avoid being frightened.

2. Isolation: Zebrafish have no habit of protecting their eggs. It is best for breeders to install a fine net when they breed, so that the eggs fall under the net, which can avoid zebrafish eating eggs.