This would be for anyone that has a saltwater tank as I dont think freshwater does this. I need a major cleaning of my tank like 2 weeks ago. I got debris that floats around the tank still. I turn my power heads off at nigt that way it will stay up top and get sucked out by the over flow box. But through out the day it just returns again. My water seems crystal clear except for this stuff. Does anyone have the same problem, I just want to know if its in possible to make the water were nothing is floating around.