Disgusting brown goo

[christyf5]

Hey guys,
So I have this algae problem that I'm sure some of you have heard about [img]images/smiles/icon_rolleyes.gif[/img]
Hair algae mostly, but there is a newcomer on the scene. Disgusting brown goo I call it. Some classified it as a diatom and suggested I get new light bulbs (2x250W MH). I got them a week ago and while I wasn't expecting success overnight, I haven't experienced any success at all and the growth hasn't slowed even a little bit. I hardly feed the tank (although you'd never know it by the amount of hair algae all over the place) and the phosphates of course read zero as they are all tied up in the ferocious growth cycle of algae. I checked my top up water and replacement water and the fresh is 0 for phosphates and the replacement SW was marginal so I used a phosphate sponge on it to get it down to zero. So any ideas? Suggestions?? I am at my wits end here. So far I have lost one SPS, another one is half gone (a few polyps remain on my montipora) and my leather is the saddest looking creature I have ever seen. HELP!!

Here is a pic, you know what they say, a picture is worth a thousand words. This crap is all over some rocks (those that aren't covered in hair algae, and the sandbed. Its the sandbed that is the grossest tho). This algae clumps the sandbed into a hard mass and it has to be cleaned off in sheets.

Christy [img]images/smiles/icon_sad.gif[/img]