Zebrafish like to move on the upper surface of water, and wild zebrafish like to move on the upper surface of water very much. The cultured zebrafish also move in the middle and upper layers of the fish tank, and many zebrafish move on the water surface, and may also surface. These are normal, so breeders should not disturb them deliberately. But when there is insufficient oxygen in the water, zebrafish will float on the water to breathe. At this time, breeders need to install oxygen pumps to ensure that they have sufficient oxygen.

Zebrafish do not have high requirements for the environment. They have the ability of cold resistance and high temperature resistance. As long as the breeder ensures that their living environment is stable and comfortable, then they can grow normally. However, if breeders want them to grow better, it is best to keep the water temperature between 24-26 ℃.

If conditions permit, it is best to install a heating rod to keep the water temperature constant. They can grow in weak acid, weak base and neutral water, and can keep the PH value between 6.5 and 7.5 when they are raised artificially. Usually, water can be changed once every 5-7 days, and the amount of water changed each time is controlled by one third of the total water volume. In a comfortable environment, their growth speed and state are the best.