What about a refugium with the same or another algea that will out compete the main tank.  Leave the light on for 24hr.  Just an idea, it's what I do to keep the caulerpa under control in my 120g. 
 
Lee 
 
PS I want you powder brown if you have the big sale..... 
		
	
		
		
		
		
			
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				Need more time for the tank... Break a leg!
			 
		
		
		
		
	
		
		
	
	
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