I don't have a sump but I do have two different filters and one 802 powerhead (I am getting a 2nd one right away).  I don't have an overflow so that will not work. 
 
I will try moving my powerhead up to the top of the water and see how that works, if it moves the crap to the corners that is okay I can just wipe it away. 
 
Thanks for the help I will let you know how it works. 
		
	
		
		
		
		
			
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				Trevor
			 
		
		
		
		
	
		
		
	
	
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