Be careful with that mix!
I had a Clown, Lipstick, Sailfin and a Hippo tang in my 8' 360g tank. After 18mnths together the clown just got more aggressive as it grew(it was by far the smallest tang though!).
I got rid of the clown tang about a month ago, it was about 8". a few weeks earlier it killed my Naso!
In the last few months it just started chasing more and more. A real shame though, an absolutly stunning fish in perfect health!
Good luck
Mark