Excuse me, what oxygen pump works?

The principle of oxygen pump is to press the air into the water, so that the oxygen in the air can fully contact with the water body and melt into the water, thereby increasing the dissolved oxygen in the water body and ensuring the growth demand of oxygen-consuming organisms. There are many domestic brands that are very good. Gatini and Dajiawan are very good, and the mute effect is very good. You can go to Kebang Lab. There are all kinds of brands, and you can also go to a treasure, but the quality is uneven and it may be difficult to choose.