I would like to know if I would be able to use two AC70 PH with the quick filter attachment for a Reverse Flow Undergravel Filter, using both uptake tubes. My airpump just broke, where the flow is reduced for both outlets :S Although I would like to know how to fix, I would rather buy two powerhead that would be used for Reverse Flow UGF. Anways, would this cause to much current for the fishes (which don't like current, like say Betta splendens or Gouramis) from the bottom to the surface of the water?
