Soooo, a 15 inch fish in a 48 inch saltwater tank should be ok? If you are 5 feet tall, then a 17 foot space is all you would need.....and using the same logic and a Puffer as the victim, you would be 5 feet tall and over 300 lbs---since our Porc Puffer is a (ehhh) wide fish with a vorascious appetite.
Yeah, the Emperors and Seaclone should do the job for the long term success of this fish. You are so very, very wrong on this and being "rooted" on by forum members that are not willing to step up and set you straight.
I will, since your fish can't talk. You've made a bad decision, your fish will suffer in a very NEW tank, and it is irresponsible to have this sized fish in that sized tank.