fish tank. It may be because the oxygen released by the oxygen pump usually dissipates quickly when it reaches the water surface, or it may be because the gas in the water is saturated, resulting in some gas escaping, which needs to be properly oxygenated. Or the water body is too fertile, after the decomposition of organic matter in the water, a certain amount of gas is produced, which contains ammonia nitrogen, which is harmful to the water quality.
for the water fertility of the fish tank? 1. High feeding density: If there are too many fish in the fish tank, the feeding density is relatively high, and the amount of excretion is too large, the water body will become fat. In this case, it is necessary to reduce the feeding density, raise fewer fish, or change to a larger fish tank, so that the water quality can be maintained and will not deteriorate rapidly.
2. Feed more: In the daily feeding process, the amount of feed should be controlled. If too much feed is fed, the water body will become fat. It is usually fed three times a day. Each feeding should be finished within 3-5 minutes. There should not be too much food left. If there is any unfinished food floating on the surface of the water, it can be fished out.
3. Do not change the water for a long time: Fish farming needs to change the water. Not changing the water for a long time will also lead to the aging of the water body, which will make the water more fertile and increase the content of ammonia nitrogen. Generally, the water should be changed every five to seven days, about a quarter at a time, not more than a third at most.
