Couple of 2ish pounders and a few chunks of rubble. Sometimes when I can't deal with the bubble algae or mushrooms on it, I put them down in the dark to whither away. Then a few months later I swap them out (or completely forget about them lol). They do tend to collect detritus underneath but I siphon the sump every few months and just move them around to collect the gunk. 
		
	
		
		
		
		
			
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				Christy's Reef Blog
 
My 180 Build
 
Every electronic component is shipped with smoke stored deep inside.... only a real genius can find a way to set it free. 
			 
		
		
		
		
	
		
		
	
	
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