Zebrafish can't live without oxygen, because like humans, they need oxygen to breathe, and without oxygen, they can't survive. Not only zebrafish can't live without oxygen, but all fish can't live without oxygen. Zebrafish have a high demand for oxygen, and they like to live in water with sufficient oxygen. Breeders need to ensure that the water in which they live is full of oxygen, otherwise they will die. If conditions permit, it is best to install an oxygen pump to ensure sufficient dissolved oxygen in water.

Whether zebrafish should be oxygenated all the time depends on the breeding density. If the feeding density is on the high side, it is necessary to keep oxygenation. Because the density is too high, the amount of dissolved oxygen in water will decrease sharply. Breeders need to keep the oxygen pump on all the time to ensure sufficient oxygen in the water. If the feeding density is low or the water body is large, the breeder does not need to give them oxygen all the time. Because the water body is large, there is enough oxygen in the water for them to absorb. If the breeder changes the water regularly, it can ensure sufficient oxygen.

Breeders can take oxygen for 2-3 hours every day, and the best time to take oxygen is during the day. This can not only ensure their sufficient oxygen, but also avoid the water flow affecting their rest when oxygen is pumped.