the lack of oxygen in the fish tank? If the fish tank lacks oxygen, the best way is to supplement oxygen. There are many ways to supplement oxygen, you can prepare an oxygen pump, put the gas head in the cylinder, and open it for 24 hours. In addition, oxygenation tablets can also be used for emergency oxygenation, but this method can not be commonly used, but also pay attention to the dosage. You can also put some aquatic plants in the fish tank, so that oxygen can be released during photosynthesis.
? 1. High feeding density: Usually, the main reason for anoxia is that the feeding density is too high. The capacity of the fish tank is limited, and fish can not be added to it indefinitely. Therefore, when it is time to divide the tank, it is necessary to divide the tank. If you really want to raise a tank, you can consider changing a bigger tank. This can also ensure the healthy growth of fish.
2. Large size of fish: In addition to the high feeding density, some large ornamental fish have higher requirements for dissolved oxygen, such as arowana, map fish, Luohan fish, etc. Because of their large oxygen consumption, even if they are raised less, they should be oxygenated by means of oxygen pumps, otherwise they may suffocate and die.
3. Feed more food: Fish need to be fed at ordinary times, but the food should not be too much. On the one hand, fish need to breathe more oxygen to metabolize if they eat more. On the other hand, the decomposition of uneaten bait in water will also consume oxygen, so controlling the amount of food can also reduce the waste of oxygen.
