The oxygen pump can be turned off at night. Whether to open the oxygen pump at night depends mainly on the breeding density in the fish tank, if there are too many fish and the oxygen consumption is large, it will be open at night. In addition, in hot and rainy weather and when fish are sick, it also needs 24 hours of oxygen explosion, otherwise it is easy to appear hypoxia phenomenon, fish are easy to float.
1. Culture and oxygenation: The so-called culture is nitrifying bacteria, which is a kind of aerobic bacteria and needs sufficient oxygen in the process of growth and reproduction. Nitrifying bacteria are indispensable beneficial bacteria in the fish tank. The residual bait fish in the water will produce ammonia nitrogen after being decomposed by microorganisms, which is harmful to the health of the fish. Nitrifying bacteria can convert these ammonia nitrogen into nitrate, which becomes the nutrient of aquatic plants.
2. Daily oxygenation: In order to ensure sufficient oxygen in the fish body, it is also necessary to oxygenate the tank for a period of time every day. Normally, it is about 2-4 hours. If it is summer or rainy weather, the air pressure is relatively low, and it needs to be extended to 4-6 hours. If there are aquatic plants in the tank, it is better to give oxygen for 1-2 hours in the evening, so as not to consume too much oxygen during the night breathing.
3. Oxygenation during illness: If the fish is ill, it is necessary to change the water, raise the temperature, and add salt during the treatment process. Raising the temperature will reduce the dissolved oxygen in the water. In addition, if the medicine is used, it will also consume the oxygen in the water. At this time, explosive oxygen is needed. The explosive oxygen state will continue until the treatment is over and the fish is healthy.
