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			 Had to hook up a 6in fan to keep the tank temp down(35.4' C  
		
	
		
		
		
		
			The back of the canopy is open so I secured it to the back,blowing air towards the front.Should I put in on one of the ends of the canopy for best results?The temp has dropped to 28C in a couple of hours. I'm running a 250w 10k mh and a normal actinic bulb over my 54gal. 
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	______________________ Jim  | 
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			#2  
			
			
			
			
			
		 
		
		
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			 I would expect that if air is moved across a larger area of your tank, then it would help a bit more in terms of cooling your tank.  So in this case, then yes, I think mounting the fan on one end of your canopy blowing across the surface of your tank would be more effective.  Just keep in mind that using a fan as a means of cooling your tank will lead to an increase in evaporation.  I'm not sure if two fans are needed for your tank, experiment with one first. 
		
	
		
		
		
		
		
	
		
		
	
	
	-Richer  |