Hey everyone, just had a quick question. Ive been filtering my 100G tank for about two months now on a canister filter and 2 whisper 40 power filters. It was only temporary at first but it kept the water really clear but one has went out on me now. Im going to pick up a bigger bio wheel HOB later today, but i did not leave enough clearence on the back of the tank from the wall for a bigger one. Would it still work as good if it was placed hanging off the side of a tank? Thanks for the responses/suggestions.