If you can get the fish out and into quantine, try and do it in a barebottom tank with  some pieces of pvc piipe.  Do a good water change every nitght, clean the pepes, and clean the tank  bottom.   
Keep all fish out of the main infected tank for at least a month, even 5 or 6 weeks to be sure,  the icks life/reproduction cycle will last up to a month.  Don't give the ick a host  , break its life cycle. 
There is quite a few good papers out there with lots of good info (google).  I had a great link but am having trouble finding it. Will post if I can locate it. 
		
	
		
		
		
		
			
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				-captainhemo
			 
		
		
		
		
	
		
		
	
	
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