I had to get rid of my solar wrasse because of this issue. I got a yellow tail flasher and he picked on him so I took him out of the tank and returned him to the store, found out later he died :( After that since he was the only wrasse he started going after anything similar shaped as wrasse and attacked my anthias. I took him back to the store and got different wrasse. Evoled has put up an awesome chart of which wrasse are aggressive and which are more friendly and ever since I've been going off that to get my wrasse.
Just added a Lubbock's wrasse to my tank. My red head solon wrasse is not a fan. Constantly horrassing and attacking. Only been a day but are they establishing a pecking order or will the my solon never stop attacking? My red velvet could care less with the new lubbock.

