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			 Lately my sand has been turning like a mossy green color in some spots.  I am not sure what is causing it.  When I siphon it off it comes back nearly hours after.  I changed my bulbs lately but I don't think that would cause it.  Any ideas? 
		
	
		
		
		
		
		
	
		
		
	
	
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			#2  
			
			
			
			
			
		 
		
		
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			 sounds like a bacteria strain similiar to cyano. 
		
	
		
		
		
		
			there is a post in reef that shows how to battle cyano check it out. 
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	Always looking for the next best coral... 90g starphire cube/400mhRadium20k/2 XHO/2x27w UV/2x39w T5/ 3 Trulumen led strips  |