It was less than a day after I added the sock that the skimmer started working again so not too bad. It might take you a little longer perhaps as you have more sand/gallon and less return flow/gallon than me... 
 
Pretty entertaining fish to watch. I'll grab at least one more when I transfer tanks. 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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