Back Pack, lots of air bubbles
			 
			 
			
		
		
		
		Quick question for you all, I purchased a skimmer I was way over due and was having some issues so I thought it was time.  I got a back pack unit as I knew it would fit behind my tank and the guy at the LFS said it was a good unit that he has had success with. 
 
I have set it up and installed it and it is working okay but I am getting LOTS of tiny air bubbles back in to my tank and they are all over everything from my coral, my rock glass everything.  I have since turned it off and added a Aqua Clear mini foam to the over flow to stop some of the bubbles that has helped but only by about 10%-15% so still unaceptable any tips here or should I try to return it and spend some more? 
 
Thanks for the help 
		
	
		
		
		
		
			
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				Trevor
			 
		
		
		
		
	
		
		
	
	
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