barracuda, I'm in the midst of mandarin research. Do some reading online. You should have a very mature tank as they primarily feed off pods
which live on your rock. I've got 160lbs of rock and I just got a fuge and mandarin owners are still recommending that I wait 8-9 more months at the least before buying a one.
According to my lfs
, he "runs into 1 out of 10 mandarins that will accept dead food", so you lucked out big time. Congrats!
I just posted this (sorry for the repeated info) http://ozreef.org/content/view/89/2/
<-- cool facts about mandarin survival in home aquaria.
Good luck. Keep me posted on his progress if you think of it.