[i have crabs]

just my opinion unfortunately, ive seen lots of lunars and simular wrasses but not together in the same tank, but from what i remember reading here and thier and how agressive they get on thier own its just not worth trying if you dont have to, i think your asking for trouble and everyone is telling you its not a good idea but you seem to want to do whatever you want. im not telling you you cant do it but i dont think you should, im not a member of the fish and coral police here online so im not gonna attack you if you do get it, for god sakes i have a 2'grouper in my basement im suprised i dont get nasty messages,

if you are gonna do it, please qt the fish, im not shure if you have a qt set up but if you dont please do and if your dealing with larger fish like it seems that you like make shure its big enough of a qt for it to live it for at least a month,
and second if you dont think you can catch at least 1 of the 2 wrasses dont try it, be prepared to rip your tank apart within a few hours of adding the new one, i can only imagine the messages that will come it if you post that both your wrasses are dead the next day.
since im a total fish nerd and thier is a foot of snow outside ill try and look in some info for you and if i find something helpfull ill let you know.