Domestic aquarium, air pump, oxygen pump, oxygen pump, what brand, good quality?
The quality of the general brand is very good, you can look at my information, according to the index index, I can provide you with a very good choice
The first is a connecting device, the black T is the piston and the blue is water. In the case of no load, pressed down the piston, the connector for the right side, because direct contact with the air pressure, the atmospheric pressure and the water itself is negligible, the water is not under any pressure, so the water level will rise. When after the above on the right side of the water load, for example, is coupled with a piece of stone, the stone is part of the shadow of the black twill. At this point, pressing the piston harder, the pressure on the water is increasing because of the load on the right, and the water level will not rise unless the water pressure is increased enough to hold up the stone.
The aquarium is the best black diamond, second king, butterflies, economical forest, Kanjia, oxygen pump and oxygen adding pump is one of the things, not that thing called oxygen, air pump, generally can be used, the key is your voice, the voice of small, cheap voice, as for water pump Yihan good, not enough flow, vacuity, but very expensive, almost all other, dense, Zongzheng, Jiabao etc.
