Quote Originally Posted by Instar
Even though it has teeth hanging out all over, the harliquin wrasse is most definitely not an aggressive fish at all. Its quite the opposite. Not a good idea to put that in with an established 4 inch purple tang at all.
I appreciate your insight...but I must say that I believe with the proper technique in acclimating the wrasse ie...at night and do some rock re-arranging I do not believe there will be any major problems.I actually plan out every new addition to my system with extensive research. One place that I learned about the harlequin tuskfish is here http://www.wetwebmedia.com/marine/fi...on/faciata.htm which is not an online fish store. One quote from this site:

Predator/Prey Relations

Most everything leaves a harlequin tusk alone and vice versa. Though I've seen incorrigible triggers and angels make passing forays at a Tuskfish, they rarely do damage or continue

again thanks for you opinion, it is appreciated