I'm just getting into pod culturing for my new Mandarin. I have 80 Lbs of very well established live rock. I just want to make sure you know. Fortunately my Mandarin is more than happy to snack on prepared foods too. I took A LOT of time waiting for just the right Mandarin. I suggest you do the same no matter your intended home for it. Getting one that will accept prepared foods will help insure a healthy happy and fat Mandarin Dragonette. I waited over a year before I felt ready to add mine and had found one that was a good eater. It was the last fish in my plan. On a podcast called Reefcast, the host, Melev, talks about his "Mandarin Diner".
http://www.melevsreef.com/mandarin_diner.html Thought about trying it out but haven't felt I have a need. Anyway, good luck.