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			 Has anyone had a DSB for over or around the 5 year mark?Mine is around there and Im noticing slime algae. I know of other long term reefers having the same problem. Anyone know if your substate should be changed out every few years? 
		
	
		
		
		
		
		
	
		
		
	
	
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			 Mine is about 1 1/2 deep, sugar size that's never been changed in 6 years. 
		
	
		
		
		
		
			I have added some new to the old a few times after coming back from Mexico, which I would then get brown diatom cycle for a week or so. I will only change my SB if it starts to bind together like cement! cheers, Rich 
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	cheers, Rich all that we do is touched with ocean, yet we remain on the shore of what we know http://www.advancedaquarist.com/2005/5/aquarium  |