I have two pair of adult unicorns and they won't mate. They have individual enclosures but are staying in the 'breeding tank' right now. One female is not mature so there is one female and two males in a large terrarium. They don't do anything! Every few days I took them out to feed (I was out of flies and crix don't make it to the top of the breeding tank). During one of those 'breaks', the female cast a beautiful, unfertilized ooth! She's barely a month old. I have experimented removing one male and leaving only a pair and there seems to be more interest then, but not much. My flies hatched so they are staying in the terrarium and still nothing. My experience with other species has been very positive - immediate interest and copulation. What do I do? And when the immature female is old enough is it a bad idea to have two females in a large enclosure with abundant prey? Should I put a pair in a smaller enclosure? Help?!