Fresh air is pressurized by Baichuan brand special aeration fan to make the aeration hose expand evenly and reach the set value. A large number of micro-bubbles (diameter: 20-30UM) are emitted from the pipe wall. In the water, such as smoke, the rising speed is very slow and the dissolved oxygen effect is obvious.Thus the oxygen content of water is greatly increased and the water is increased Mobility and raising density. Applicable pressure range: 10 ~ 80KPA, applicable depth range: 1 ~ 5m, the hose can be wound on a steel wire tray, matched with corresponding plastic tee and pipe fittings, can be suitable for the layout of various types of fish ponds, to bring real benefits to farmers.