I seen alot of talk of the Penguin Bio-wheel mini here, so I thought i give it a try again. I had already an old Regent, that i did not have any filter media for (just found some when I picked up the Penguin, So I decided to add that filter also) and an Aquaclear 150 with media, and a UG fillter. My question is it ok to have all the fillters on the tank? Is it posable to over filter the tank? (I already owned the Regent and the Aquaclear) Or am I doing over kill if I just add all three of the HOB filters?