That cyano sucks. I had an outbreak of it about a year ago. (tried the chemical stuff also.) Kept coming back. It was rather easy to fix for me. I didn't have a protien skimmer yet. once I got the skimmer I cleaned as much of it as I could and it didn't fight back. I see it says you have a skimmer but if anyone is reading this who has this problem and no skimmer. It helped alot to pick one up. 
		
	
		
		
		
		
			
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