The exhaled air contains little oxygen, but the carbon dioxide content is higher than the oxygen content. The principle that people blow into water to make it aerobic is because the blown bubbles burst on the water surface, thus absorbing a certain amount of oxygen in the air. It takes a long time to increase the oxygen content in water, and it can't be done at once. You will be tired after blowing for a while, so people blow to increase dissolved oxygen in water, and the effect is very small.

Matters needing attention in fish farming

Fish farming needs to pay attention to the hygiene of fish tanks and clean and disinfect them regularly. It is very important to deal with fish tanks that are easy to breed mosquitoes and clean them in time. Try to use a slightly larger fish tank, because the more water in the tank, the more stable the water quality. At the same time, try to raise slightly smaller fish, because the smaller the fish, the less harmful metabolites are produced.

It should be noted that the number of fish farming can be controlled as much as possible, because the less fish farming, the smaller the impact on water quality. In addition, it can also reduce feeding, increase water change frequency and reduce water temperature fluctuation.