Hope I'm not gravedigging - I was bisy for a few months, though. Anyway... I understand that they are very difficult to breed - I think an effort must be made, however, as I haven't seen them on the market up here in Montreal for MONTHS - only silver Hatchets, which get much larger, and I don't really like, anyway.
I'll bet they have to have a space to jump around in for a mating dance...it wouldn't suprise me.