I have an APS 1000 external filter, and allthough the filter is good it does not move the surface of the water as good as I thought it would. What I'm wondering is, is it the movement of the surface that does the oxygen exchange or the breaking of the water surface that does it. The filter does plenty of circulation of the surface but it don't disturb it, push gently moves it around.
Thanks.
Jus to add the tank is a fluval 125 tropical setup
Thanks.
Jus to add the tank is a fluval 125 tropical setup








