I voted no. When I had a sandbed its was pretty deep in both the tank and refugium/sump. Lots of critters so I never siphoned it. Mind you that was back when that was the big thing.  
 
    I have been running bare for years now. Was going to add some to my new tank for wrasses but the pain of looking after it was not worth it. 
		
	
		
		
		
		
			
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				Doug
			 
		
		
		
		
	
		
		
	
	
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