In my 6' tank I have: 
 
Yellow Tang 
Purple Tang 
Sailfin Tang 
Regal Tang 
 
I think all do well but eventually the Regal will need a bigger tank. He's too much of a mover and grows so quickly. Everyone else will do well in there for years to come. 
		
	
		
		
		
		
			
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				Member of the 2012 180 Club
			 
		
		
		
		
	
		
		
	
	
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