Btw, with all the recent posts, I thought I'd chime in here. I'm only running a 1x96w 50/50 on my tank (38g). The temp was up to around 82 (normally around 79). By just putting a small dinky fan, about 5' away from the tank, its brought my temp down to around 79-78. 
		
	
		
		
		
		
		
	
		
		
	
	
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