mr_X
Aquarium Advice Addict
I realize that. I'm doing the best I can. You say the mag18 is choked back to more than half? Is it louder now wide open after the adjustments you made? Is the tank completely level?
That's not a bad idea either and something I may try. How far down did you suspend the bio ball? Tomorrow I'm going to pick up some pvc and try this.
Dave