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			 I think your nitrate/nitrite levels and propably even more important is your phosphate levels.  Have you tested your phosphates?  I would try and keep them undetectable (<0.015ppm). 
		
	
		
		
		
		
			
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	300 gal starphire custom built in pentagon reef (+90 gal sump on Blue Line 100 HD return pump, 210lb LR, Euro-Reef RC250 skimmer, 2x400W MH, 2x28W compacts, 2xTurbelle classic 4002 pumps & Turbelle Stream 6100 on 7095 Multicontroller, running ZEOvit) Livestock Fish: damsels; sailfin, yellow, regal & naso tangs; ocellaris & tomato clowns; lyretail anthias; foxface lo; flame angelfish corals: a few  |