Yellow tang lost tail fin-will it grow back?

[Dundermifflin]

My yellow tang got nipped up a bit from the two blue tangs. Then when I put the porcupine in he got it from him too. The porcupine had only been out of the QT and in the DT for 48 hours and was going after the blue tangs and yellow tang so I put him back in the QT. The yellow tang is in the DT and moving around and eating. Doesn't seem to be getting picked on by the blue tangs, but again I'm not monitoring it 24/7. Should I leave the yellow tang in the DT with the porcupine in the QT or switch them out and put the yellow tang in the QT and porcupine in the DT?

Any suggestions?

Thanks.

 

[Giants13]

the fin should grow back but make sure to watch it ( feed it some vitamins), because it is more prone to diseases right now. A porcupine, in my experience should only be in a aggressive tank but thats just my opinion. How big is ur tank?