I've had a shoal of Bimacs for quite some time and boisterous sums it up quite well. I've had them knock many a coral frag off its mount while chasing each other around the tank. Out of the 9 females I originally had, 4 became male. One was summarily killed while all three of the others now have one eye each. Nevertheless, they all display spawning behavior just about nightly. On another positive note, they seem to ignore other fishes including other Anthias and are very easy to maintain provided you give them plenty of both swimming and hiding space. They (the males) can grow to 4-5".
Oh, and mine love PE Mysis but will eat pretty much anything. Hope this helps.