That was part of the reason I was curious! I'm almost as interested as with the kirin parrots but they don't have the red eyes which is my favorite feature. It would be kind of interesting to do a kirin/green crystal cross don't you think?I found some on ebay. They were wholesale housed but still very lovely.
I have the same problem unfortunately. :/If its not goldfish or koi, I don't breed it on purpose. Not because I dislike em but have a limited ammount of space and I try to stick to what I'm good at for now. Id be interested in seeing the offspring if you do take up the endeavor