1. Prepare tools: When zebrafish reproduce, first prepare tools. The most important thing is a separate breeding tank, in addition to some equipment, such as oxygen pumps, filters, etc., sometimes used.
2. Select the parent fish: Then select the parent fish. Zebrafish that have entered the sexual maturity stage must be selected, and there are other criteria, such as good appearance, physical health, obvious species characteristics and high activity, etc.
3. Spawning and insemination: Select 2 or 3 pairs of parent fish, which can be placed in the breeding tank. To ensure that the water environment is suitable, they will lay eggs and inseminate around 10 A. M. the next day. The next thing to do is to suck out the fertilized eggs with a straw and remove the unfertilized eggs. Those unfertilized fish eggs are generally white and easy to distinguish.
4. Hatching: The fertilized eggs are placed in a suitable water temperature environment for hatching. Specifically, if the water temperature is about 24 degrees, then the incubation time is about 2-3 days; If the water temperature is about 28 degrees, the incubation time will be shorter, more than a day can be. Therefore, it is necessary to adjust the temperature in time.
The speed of zebrafish spawning is relatively fast. In the breeding season, the parent fish are placed in a separate breeding tank after being selected, and the surrounding environment is adjusted to be in a suitable environment, so that they generally lay eggs the next morning, and the process of laying eggs is basically over at about 10 o'clock. Moreover, the number of eggs they lay each time is relatively large, more than 300, and some zebrafish will lay more than 1000 eggs.
