Aquarium pump ...the complete Tropical Fish and Aquarium resource.

There are many misconceptions about aeration. As we do
not fully understand the effects of aeration in relation to the action of
plants, etc, this is not surprising. We do know that aeration does not force air (or oxygen) into solution in the water, which
is the most popular misconception. Nor, under usual conditions, is
much oxygen absorbed from the bubbles themselves; they merely
serve to stir