Well don't Beat me for this Mike but i dont test for Phosphates.    I never have tested for them.  I dont have any algae in the tank other then a couple of bubble algae's here and there. I run Phosban alot too. so I just nevered thought that crossed my mind to test for PO4.  
		
	
		
		
		
		
			
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				180 starfire front, LPS, millipora  
Doesn't matter how much you have been reading until you take the plunge.  
You don't know as much as you think.
			 
		
		
		
		
	
		
			
			
			
			
			
			
			
			
			
				
			
			
		 
		
	
	
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