By using an air pump, you can take advantage of the diffusion of air into water. When placed at the bottom of your reservoir and used in conjunction with an airstone, the bubbles produced will increase the dissolved oxygen level of your nutrient reservoir. The bubbles will also keep your reservoir evenly mixed, which is a nice side benefit.
|Dophin 5500 - Air Pump||Single Outlet||2.0W||80 L/H|
|Dophin 6500 - Air Pump||Single Outlet||2.5W||100 L/H|
|Dophin 7500 - Air Pump||Double 2 Step||3.0W||150 L/H|
|Dophin 8500 - Air Pump||Double 3 Step||3.5W||210 L/H|
|Regent 9500 - Air Pump||Double Flow Control||4.0W||240 L/H|
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