Not sure yet. As of now the tank has been running for about 6 months with 2 clownfish and a blenny in it. Nothing special. Alot of macroalgae, coraline starting to cover the back wall. I'm going to be moving these guys into a 40gallon breeder and will be starting to try Corals/anemones. (it will be a while before I start adding those, gotta piece together the equipment.)
I thought this filter was menat for tanks up to 40gal? Are you sure 280gph isn't enough filtration? I haven't had any problems with this tank since it's been running.