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			#1  
			
			
			
			
			
		 
		
		
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			 i've got this red stuff growing on the glass of my refugium and thats the only place it grows. 
		
	
		
		
		
		
		
	
		
		
	
	
	its not coraline cuz it comes off easily. i've got very slow flow going through the fuge and about 15 hours of light a day (opposite of display tank) 6500K bulbs ![]() any suggestions?  | 
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			#2  
			
			
			
			
			
		 
		
		
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			 Almost looks like red cotton algae, cayno is usually more of a film with bubbles. 
		
	
		
		
		
		
			
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	360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras 360 Reef Tank  | 
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			#3  
			
			
			
			
			
		 
		
		
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			#4  
			
			
			
			
			
		 
		
		
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			 i have a power head in there but it blows the cheato all over the place and i dont want pieces ending up in my display tank 
		
	
		
		
		
		
		
	
		
		
	
	
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			#5  
			
			
			
			
			
		 
		
		
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			 Is it stringy, if so then yes it is cyano, scrape removing it not to give it a chance of growth as it will make it to your main tank. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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			#6  
			
			
			
			
			
		 
		
		
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 its not stringy at all.... looks like regular film algae that grows on glass but its white  | 
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			#7  
			
			
			
			
			
		 
		
		
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			 Still think its red cotton algae  
		
	
		
		
		
		
			What kind of light are you running on the fuge? What spectrum of light is it? How old is the light ? I would try throwing a turbo in the sump to clean it up. If it is no where in your display but in that sump there is a problem in the area, either lighting, flow. Seeing it is in your sump with a powerhead i think the turnover will be sufficient. 
				__________________ 
		
		
		
		
	
		
		
	
	
	360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras 360 Reef Tank  |