Originally Posted by carey
Actually, I run the sponges and filter floss in my tanks. It gets rid of the particulate matter that will float around your tank. In saltwater the live rock is about 80% of the bio filtrations adn the filter is pretty much only for catching large particles and for running chemical media like GFO
Yes, that is true to an extent. Floss and sponge will remove detritus etc. however, without proper and prompt removal and cleaning of this media, nitrates and phosphates levels quickly mount up. If anything, use a filter sock and replace every few days. This is a lot more convenient and easier to do, in my opinion.