Aquarium Water Pump With Aeration. The water will pick up oxygen on the way down to the tank, thus inserting oxygen right into the water. It is optimum to have water pumps and filtration returns situated to maximize the water’s surface turbulence.

Suppose you need a good aerator water pump for an outdoor or indoor fish pond. A combined water pump, aerator, and filter for an aquarium comprises a central connecting manifold 68, a vertical outer air tube (26) which extends down. There are two basic types: