If you can qtine this fish and are ready to treat him for parasites, then yes, but if you do not have the ability AND equipment to qtine AND treat him for the inevitable ich breakout, then pass on it. Tangs are tricky to qtine and hyposalinity alone may not clear up an ich breakout. If you have alot of experience fighting ich and the equipment to do it, great! If not, it's be best to pass on the tang.