My Bird wrasses have been with me close to 3 1/2 years now, great wrasses to have and I find them quite hardy, they do get large, these wrasses need space and room to swim. Personally I would not keep one in a tank under 6 ft. Bird wrasses are fast swimmers, these two can swim circles around my trigger, I had a Hippo tang (sold it) this tang did not compare to a bird wrasse when it comes to speed.
I acquired my male because, he has been known to kill smaller fish (clowns & gobies), I have had no problems with him, his tankmates are larger species.
I have a FOWLR tank.
Bird wrasses will eat any crustacean or inverts, I have even tried a larger venomous urchin and they still killed it. The Bird wrasse will pick in the crevices of your rock, they can deplete a pod population pretty quick, so if you have anything thing in your tank that requires pods or you do not want your pod population depleted, the bird wrasse is not the way to go.
I feed a variety of meaty foods along with green.
My Male
My Female
Hope this helps,
Kaye