At least they are easily sexed, as compared with many other fish. As mentioned, food, would be a major concern. I thought I once seen a good article on one of the online mags, but without searching, dont remember which month it was.
charlesr1958,
Welcome to Canreef. I never knew you were a member on Canreef, until now. Its great to see you here. Although not a member on MD, I read it always, esp. following some of your threads.
A unique approach to keeping reef aquariums. Very natural looking. And a great website.
anyways, enough of topic, back to the mandarins.