sorry I dont mean to change the subject....but why does everyone want a lunar wrasse in their tank??? THeyre cool but if you want a colorful large Thallassoma wrasse there are PLENTY others that arent so common. I think the male banana ( Th. lutescens ) is much better looking than a lunar. Also check out the paddlefin, surge, and the most beautiful, the Klunzingers wrasse.
Back to your question......you could go with a small trigger ,angel, puffer, lion. BUt you should realize these types of fish will outgrow a 72g within a couple years. Also from my experience lunars tend to be aggressive, especially towards newly introduced fish. Try to add the wrasse last if possible. I had a banana kill a powder blue, many damsels, flame hawk and almost killed a puffer once.
