Small zebrafish are not born for a long time, and there are not many kinds of food that can be eaten. Breeders can feed them some rich shrimp eggs, cooked egg yolks and other foods, as well as chopped red worms, yellow mealworms, silk earthworms, bread worms and so on. These foods are animal feeds, which contain more protein and fat, and can meet most of the nutrients needed for their growth and development.

Small zebrafish have a high demand for food, but their appetite is relatively small, so breeders should follow the principle of eating less and eating more. It is best to feed small zebrafish twice a day, and it is best to eat them in 5 minutes each time. When feeding, sprinkle the food evenly in the fish tank, which can ensure that most fish can eat the food.

1. Water temperature: Zebra fry is just born and has poor adaptability to the environment. Breeders need to keep the water temperature at about 26 ℃. In the process of feeding, try to avoid temperature difference. If conditions permit, it is best to install heating rods to keep the water temperature constant.

2. Water quality: Zebrafish does not require high water quality, but newborn zebrafish is sensitive to environmental changes, so breeders try to reduce the frequency of water change. If the feeding water is not dirty, you can choose to change the water once every 1-2 weeks.

3. Space: Although zebra fry are small in size, the breeding density should not be too high, otherwise they may suffer from hypoxia.