I actually have the Corals Magazine Issue (December/January, 05/06) that details the spawning and captive rearing of this species. It's not "terribly" helpful. From what I've gathered overall I'd say that both Mandarins have been successfully spawned and reared in captivity, but it's not a "regular" occurance like clownfish, dottybacks and bangaii's!
I obtained my mated pair of mandarins simply by putting a male and female together. I may have gotten a bit lucky, but that's literally all it took.
FWIW,
MP