I am fighting the same thing you are.  My tank has only been up for 6 months though.  Everything is brand new in mine.  I contribute my problem to my crappy skimmer, but thats a whole diff. story.  You might wanna try purchasing or even a DIY project and make a H.O.B fuge for your tank.  Throw some mud, or sand, or whatever floats your boat in there along with your choice of macroalgae.  Put a little light on top and watch the nutrient struggle begin.  Although I have yet to do this I have done alot of research on it, and am getting a sump with fuge next month. 
		
	
		
		
		
		
			
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				MG
			 
		
		
		
		
	
		
		
	
	
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