Specifications according to the size of the aquarium tank, household large box can be selected double hole or 4 holes, small box selection of single hole can be. About the gas volume regardless of single hole or porous, buy to check the gas volume, take a hose, put into the water and electricity, check the gas volume, see whether the gas size adjustment is normal, there is no change, large gas volume to buy. Now the oxygen pump on the market is labeled super quiet, of course, or to try for yourself, the smaller the sound, the better. Operation for a few minutes, see if there is no smell (the electrical smell) and whether there is a serious hot. If possible, you can choose several identical rubber bowls for later use.

Oxygen pump should not be soaked in water, exposure, touch and oil. Those that need to be higher than the water level of the fish tank and lower than the water level of the fish tank should be used with the check valve to prevent the water backflow and damaging the pump body after power failure. Pay attention whether the oxygen pump complies with the supply voltage before use. If possible, try to open, especially in the summer temperature is high, the dissolved oxygen in the water will drop with the rise of temperature, see the fish rise to the water mouth breathing is very obvious signal of hypoxia, must add oxygen. In addition, according to the different types of water quality and oxygen content of the level of different, the size of the fish tank and the number of fish determine the different demand for oxygen. If it does not need 24 hours of uninterrupted open, a program controller can be used to switch the oxygen pump. Because the inside of the pump is an electromagnet to drive a rubber bowl vibration to produce pressure, normally can be used for tens of thousands of hours. Generally speaking, the oxygen pump to the fish tank oxygen, mainly to increase the amount of dissolved oxygen in the water, to prevent ornamental fish hypoxia suffocation death.