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			#1  
			
			
			
			
			
		 
		
		
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			 Another possibility is that what you have may not be cyano but rather dinoflagellates?  in that case it is a very different treatment. 
		
	
		
		
		
		
			I used Seachem HO for elevating my PH without raising my KH and it worked well for me to remove all the dino. It never returned. 
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	_________________________ More fish die from human stupidity than any other disease...  | 
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			#2  
			
			
			
			
			
		 
		
		
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			 Doesnt look like dinos. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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