I have a 120g tank with a small sailfin. I am looking to add a Naso from my LFS soon. The Naso is about the same size fish as the sailfin. I was told that they would work out their differences in my tank, because of the size they could have each their own territory to claim. I was also told by the owner of my LFS that I could have up to 4-5 Tangs in my size tank. I know that I should add the most aggressive one last. Any suggestions on what other tangs would go well with my stocking list? Also, what order should I add the suggested tangs? I would like a variety of fish in my tank, so maybe that would include trying to look for other fish to add, other than the tangs.