porcupine puffer problems

Not knowing anything about your tank or water conditions I'd have to say no. That guy is going to get pretty big ,"like over a ft if I'm not mistaken". They also tend to be sort of shall we say anti social as far as other puffers,triggers, boxfish or anything that could be possibly mistaken for one. I'd just give him some time and see if it adjusts ok a lot of times s.w. fish are sort of shy after a move especially if they don't have hiding places.
Hth
chris
p.s. if you could tell us a bit more we could help you more