New 90 Gal

[Der_Iron_Chef]

Yeah, a sea hair will make short work of it, in my experience.

I would go barebottom and watch how much you feed. Only add ro/di water and run some sort of phosphate removal media in your sump.

[draco]

I would check and see how much your protein skimmer is pulling out of the tank maybe you dont have it set high enough. on my 90 gal we empty the protein skimmer every 3 days and it is almost black