1. Abdomen becomes larger: Before zebrafish is born, its abdomen will become larger. And the color of their bellies will also change, and the bellies of zebrafish to be produced will turn pink and look a little transparent.

2, slow movement: The belly of zebrafish will be too large due to the proximity of production, so their swimming speed will slow down. Some zebrafish will still float in the water.

3. Genital protrusion: When zebrafish approaches production, its genitals will protrude outward. Moreover, the color of genitals and the surrounding colors will become more prominent.

4. Irritable: Female zebrafish near production will become very irritable and have a strong sense of crisis. If other fish approach, they will attack.

1. Isolation: After zebrafish production, it is necessary to isolate parent fish from fish eggs to avoid parent fish eating fish eggs as food. Breeders try to give their parents a separate rest environment when they are isolated, and then put them into the original tank for breeding after they recover for 2-3 days.

2. Feeding: After isolating the parent fish, the breeder needs to feed them some highly nutritious and digestible food immediately. Because it takes more energy to give birth, feeding food immediately can speed up their recovery.