I don't take it as argumentative at all either. A good debate is a good thing. Regarding possible powerhead issues... You will need sure grip 100's (50s won't cut it) or maybe tunze magnets, or the magnets on the RIO polario to hold up any sort of powerhead on a tank like this. Trust me, I have been down that road. By the time you glass and epoxy that 3/4" plywood, it is close to an inch thick. The issue I have with CL's is the extra wasted pump electricity and the pain it is to clean them. I do really like the clean look to them though Oceans motions do work very well.