Catherine I really think its in your rocks some  must hav cause it to swing thewrong way, and ended up creating a bloom. why not take the rocks out and cook them or see if you can trade the rocks with a LFS , may be that will work. i fell realy bad for the way that your tank is going thur.. then have the corals in a tub with a light, run a basic system and cook the rocks 
		
	
		
		
		
		
			
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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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