Under normal feeding, the guppy does not need oxygen. Although they are tropical fish, their demand for oxygen is not high. As long as the breeding density is not particularly high, the oxygen in the fish tank is enough for them to breathe. In order to avoid hypoxia, breeders need to change their water regularly and quantitatively, which can reduce the occurrence of hypoxia.

Although the demand for oxygen for guppies is not very high, it is necessary to give them oxygen when the breeding density is too high. Because the density is too high, the demand for oxygen will increase, and it is impossible to meet them only by oxygen in water, so breeders need to install oxygen pumps to pump oxygen. In addition, when the temperature is too low or the air pressure is low, breeders also need to install oxygen pumps to ensure sufficient oxygen in the water.

The time of guppy take oxygen can be determined according to the feeding density. If the feeding density is on the high side, it is best to take oxygen for 2-3 hours a day. If the feeding density is not very high, it is ok to take oxygen for 1-2 hours a day. Their demand for oxygen is not very high, and too long oxygen exposure may cause discomfort.

However, when the air pressure is low or the temperature is too high, the breeder needs to keep oxygenation to ensure sufficient dissolved oxygen in the water. If the breeder doesn't have enough time, he can install a timer and take oxygen regularly every day.