I have a 10g Eclipse setup, I took out the bio wheel and the eclipse filter, all I use is a large mesh filter in the filter area for some mech. filtration. My live sand and LR do the rest. I have a true perc, a royal gramms, blue leg hermits, snails, and shrooms. And I just found a baby brittle starfish today in the LR (woohoo!). I would consider buying a new light though if your still using the one that came with it. I use a 50/50 NO light and I have coraline everywhere.