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					Originally Posted by  bryceschutte
					 
				 
				Yellow tang is doing great in the sump.  Looks like he's heeling up already and he is alot yellower than he was yesterday.  I have a 90 gal display with a 30 gal sump.  IM going to give him a week to get nice and healthy and then try the mirror trick.  How long do you leave the mirror in the tank for?   
 
I got rid of the ick a month ago. 
			
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Sorry, you will never be rid of the ich in a display tank (unless you have no corals or inverts and stripped it bare, treating with hyposalinity or copper) or you have taken your fish out and treated in a separate tank leaving the display tank fishless for at least 6-8 weeks. It "goes away" and doesn't rear it's ugly head until one of your fish is injured or stressed. 
I'm not trying to be discouraging, I just want to to know to still watch out for it. I wish you and the new fish the best of luck, but be careful, 2 tangs in a 90g just might be 2 tangs too many.