Keep breathing oxygen, and the fish will not die. Although fish live in water, they also need to breathe. Aerobic oxygen can increase dissolved oxygen in water, so it is very beneficial to fish. Although fish will suffer from bubble disease when oxygen is saturated, the oxygen pump is not pure oxygen, but air. The oxygen content itself is not particularly high, and it is difficult to dissolve in water, so it will not lead to oxygen saturation. First, will fish die if they keep playing oxygen? If you keep playing with oxygen, the fish will not die. Although fish live in water, they also need to breathe. Aerobic oxygen can increase dissolved oxygen in water, so it is very beneficial to fish. Although fish will suffer from bubble disease under the condition of oxygen saturation, the oxygen pump is not pure oxygen, but air, and its oxygen content is not particularly high, and it is difficult to dissolve in water, so it will not only lead to oxygen saturation, but also help to avoid other gas saturation, thus achieving the effect of disease prevention.

Second, when do you need oxygen? 1. Daily oxygen: If the fish need more oxygen, it is best to turn on the oxygen pump at ordinary times and often to avoid lack of oxygen at night. If the lack of oxygen is not so serious, it is enough to give oxygen for 2-4 hours a day, but the time must be dispersed.

2, open the cylinder for oxygen: fish farming needs to open the cylinder first, and open the cylinder to cultivate bacteria. Because many beneficial bacteria belong to aerobic bacteria, it is necessary to pump oxygen with oxygen to accelerate their growth and reproduction, establish the ecological environment in the fish tank as soon as possible, and let the fish grow healthily.

3, oxygen during illness: fish also need oxygen when they are sick, which can accelerate metabolism and discharge harmful substances as soon as possible. At the same time, because some drugs also consume oxygen, it is necessary to supplement oxygen.