Dr Joe;1217740; said:Basically get the strongest power head you can to really mix it up. I'm just against this type of thing because it screws up the water sooo bad and the fish have no choice but to 'breathe' it. I prefer a gravel vac type system. I made a wand with a horizontal bar as wide as the tank w/ a slot cut in the horizontal bar facing down and have it hooked to a 800/1000gph pump and dump into a filter system if I'm saving some of the water, then it goes back into the sump.
Dr Joe
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