The problem you will run into will be the size of the tank and the size of the naso. They require a very large tank and you are looking at a large bioload. I would not reccomend it,unless you have a bigger tank then the one you have stated(55 gal). I have one in my 150 with clowns, yellow tangs, shrimp and mandrin, and they all get along, but they are in a much bigger tank.