to the fish tank manually? The most direct way to add oxygen to the fish tank manually is to install an oxygen pump. In addition, the dissolved oxygen can be increased by changing water regularly. Usually only when raising some large fish need to add oxygen, if the fish is relatively small, and the feeding density is not high, it is also possible without oxygen, as long as there is a pump to ensure water flow, there will be no hypoxia.
1. Equipment oxygenation: Equipment oxygenation is a common method of oxygenation. Generally, the oxygen pump with appropriate power should be selected according to the size of the fish tank. It is better to turn on the oxygen pump all day so as to avoid anoxic floating head. If you want to open the stage, you have to open it for two hours in the morning and two hours in the afternoon. If there are aquatic plants, you have to open it for a while in the evening.
2. Biological oxygenation: Biological oxygenation relies on photosynthesis of aquatic plants, which can also release a small amount of oxygen. It should be noted that the oxygen content produced by photosynthesis is not high, and the plant itself needs respiration, so it is not feasible to rely on this method in the case of high feeding density.
3. Drug oxygenation: Drug oxygenation is generally common in pond fish farming, and family fish farming seldom prepares oxygenation tablets and other drugs. This method is generally used in an emergency. For some reasons, the dissolved oxygen decreases rapidly, which requires oxygenation tablets to supplement oxygen.
