My favorite fish is my copperband butterfly.. such a nice personality and not skittish one bit. Each fish is different because my niger trigger is the one that is very very skittish and he hides all day in his cave and only come out to feed, then go back into hiding.
So each fish has its own personality. I have been feeding my copperband live white worms for a year and he is healthy and outgowing and very friendly. He does not eat any aiptasia, or touch clam or coral at all.
I agree 100% that acclimating the fish alone in a QT is the best way to go because the fish does not have to witstand the other fish aggression while getting used to captivity. I took this opportunity to gain my fish trust and he was so skinny so I took this time to fatten him up and after that month in quarantine he was already trusting me and eating from my pipette. Transfering him to the main tank was done the least stressfull way with a large plastic container...he bearely noticed the switch
