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			 I have a 50 gallon tank with fluval 404 filter system blowing in the tank.  I also have a prism protein skimmer, which doesn't add much to the water movement.  Do I need a powerhead to add to my water movement? 
		
	
		
		
		
		
		
	
		
		
	
	
	I have a few corals, live rock, anenomes and fish.  |