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			#1  
			
			
			
			
			
		 
		
		
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			 I'm starting to get a scum like film on the top of the water in the tank. Its a 90 gal. I have a Flu 404 filter (new two weeks ago) skimmer and a power head at the top of tank to move water. I just transfered to a smaller tank so I hear that this is common to  happen. How can I prevent this from going farther. water change? Reading past posts  lighting seems to come into effect. Any ideas or suggestions greatly appreciated 
		
	
		
		
		
		
			Thanks three dawgs 
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	Just starting tank. Was always told \"there\'s no such thing as a dumb question\"  | 
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			#2  
			
			
			
			
			
		 
		
		
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			 Greater surface agitation. Nothing to do with lighting. 
		
	
		
		
		
		
			
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	Brad  | 
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			#3  
			
			
			
			
			
		 
		
		
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			 thank you 
		
	
		
		
		
		
			
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	Just starting tank. Was always told \"there\'s no such thing as a dumb question\"  | 
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			#4  
			
			
			
			
			
		 
		
		
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			 raised power head to push more water on surface and worked great  
		
	
		
		
		
		
			
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	Just starting tank. Was always told \"there\'s no such thing as a dumb question\"  | 
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