I've never had any issues with epoxy, some colonies start to slough, and it's like a cellular thing, all the parts do the same thing. I've fragged colonies and put them all over the tank, and they all still RTN'ed. Sometimes they just do that. 
		
	
		
		
		
		
			
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				Brad
			 
		
		
		
		
	
		
		
	
	
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