I added one the other day, same thing the tang went to town on the copper,
next day they were friends.

I've just added a copperbanded butterfly to my 55 gallon tank which
contains a sharpnosed puffer and some clown fish. Problem is the tang
is hassling the butterfly fish, which is now hiding. Will this settle
down, is there anything I can do to help or have I got no chance! -
the tang is bigger than the butterfly fish
thanks
tim