![]()  | 
	
| 
		 
			 
			#2  
			
			
			
			
			
		 
		
		
	 | 
|||||
		
		
  | 
|||||
| 
	
	
		
			
			 Really depends on your setup. For the reef I would tend to lean towards not using them b/c they are good at trapping debris and thus causing nitrates. Although if you keep them really clean then I can't see a reason not to. IMO if you have enough healthy live rock you really don't need them.  
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
	![]()  |