Probably a combination of things. My chaeto is growing well. I added a phosphate reactor filled with nitrate sponge. I stopped feeding flake food. Coralline has been doing well and spreading. My sea hare has cleaned up any algae that was left on the rocks. I'm thinking of buying a second phosphate reactor for Phosban, since they're so cheap. HELP! I've already run out of room in my brand new sump!!! I have an extra skimmer sitting around that I want to use but have nowhere to put it... God, it feels like I'm constantly upgrading everything... No matter what I do, it's never enough! Buy, buy, buy. Things are going well for now, hopefully won't need to buy anything for a while. Besides my reflectors and some new corals, of course.