One advantage of having the returns feeding into a separate skimmer compartment, is it's a area where detritus can settle out, then cleaned.  
  
Guess also to ask, what type of fuge? If your combined fuge is sand, then there's a chance your fuge might become a cr@p trap, though using a filter sock would definitely help things. If just floating some cheato and BB probably not a concern. 
		
	
		
		
		
		
		
	
		
		
	
	
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