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					Originally Posted by  ensquire
					 
				 
				Grizz, 
Did you buy the external or internal ballasts ?  
I have been looking at these myself recently and like the cost. 
I am thinking of upgrading from my cheapo hagen fixture on my 36 gallon.  
The 24" expandable looks about right for the tank, but I don't like the external fan and have never had external ballasts before. 
			
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 Get a 36" inch for your 36 gal tank.
some pple say that expendeble legs are little week and whole fixture goes down about 2" inch when you expend it. or get a new version with 4 legs