Sailfin Tang and Yellow Tang

[jdair101]

Just picked up a nice Sailfin tang and put it in the tank with a Yellow tang thats been in the system for 5 months. The Sailfin is a bit smaller than the Yellow and the problem I think I have is the Yellow tang is aggressive towards the Sailfin. Is this going to continue or will the Yellow ease of after a couple days? The tank is a 112gal 60X18X24 with lots of hiding places within the rockwork. I realize the tank will not be big enough when the Sailfin reaches full growth, but by then I hope to have a 180ish set up.
Thanks Jim