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			#1  
			
			
			
			
			
		 
		
		
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			 this is the first time i see this kinda alage in my tank they have been growing in the back of my cube tank and the power head  
		
	
		
		
		
		
		
	
		
		
	
	
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			#2  
			
			
			
			
			
		 
		
		
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			 Looks like some red and green cyano to me. Some could be coralline as well. The white sponges are generally harmless and disappear over time.  
		
	
		
		
		
		
		
	
		
		
	
	
	IMO only, I'm no expert.  | 
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			#3  
			
			
			
			
			
		 
		
		
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			 Looks like red cyano and green hair algae to me. Hard to tell exactly from the pic though. 
		
	
		
		
		
		
			
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	If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!  |