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			 Steeve, im guessing the lower flow is in the tank with the sand-bed? With higher flow the algae tends to be discouraged. But im not arguing that sand-beds are better. Im making a prop-system soon, and It is going to be BB(except for the fuge). 
		
	
		
		
		
		
			Chris 
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		No more tanks   - Laying off the ReefCrack for awhile!Cheers, Chris  |