Help... Skimmer question!
			 
			 
			
		
		
		
		Hello, we just picked up a used saltwater system and finally got it all running a few minutes ago. I plugged in the skimmer and it is definitely pumping water, which is good, however it doesn't seem to be "skimming" much. I don't see any froth building up. Is that normal - does it take time, or is there something I need to do to make this happen? 
 
Unfortunately the previous owner threw out nearly all the water from the tank, so we're starting with 90% new water here... not sure if that makes a difference. There is live rock in the system, and I have 3 powerheads running right now as well.  
 
You help/advice is appreciated! 
		
	
		
		
		
		
		
	
		
		
	
	
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