Copper banded butterfly Need Advice

Ok! I need some opinions.  I've found the perfect Copperband I've been looking for at my LFS.  Its big beautiful fat and eating aggressively.  Some other customer brought it in as a trade in because it was decimating his reef tank.  I put a deposit on him and will pick him up tomorrow.  I usually give all my new fish a freshwater dip for 3-5min and then quarentine for 2-3 weeks.  What I'm wondering is if I should forgo the freshwater dip with this fish because it is so sensitive.  Any advice would be much appreciated. Thanks!

 

Doesn't anybody have an opinion around here?
Well it doesn't matter any more. I picked up the fish today and gave it a 4 min freshwater bath and he tolerated it great. It was swimming around the bowl like it was pissed off. This fish is a beast of a Copperband!

 

I give new arrivals a 2-3 FW dip with a concentrate of paracidal then QT em for about a week. 5 mins is very harsh on any fish. SW fish have a hard enough time with osmoregulation (maintaing the balance of solutes in thier bodies...like salts) and FW dip throws it outta whack big time. I usually dip the for a few mins max.

 

You have to do a 3 minute Fw dip minimun to kill ick and preferably 5 min according to the experts like Bob Fenner.  I adjust the pH with Nabicarb and then use 1-2 quarts of FW and add 6-8oz of salt water.  Its just as effective as 100% FW.  In fact one of the books I have recommends using a mixture of 90% FW and 10% SW for dips because its just as effective and less osmotic stress on the fish.