They are in the castexi family but who really knows if they truly are. I have kept many types of castexi and the jags seem to be shaped just a little and the eyes seem to be a little wider but that is just opinion not science. The fact that these are breeding at such a small size tells me that the info you do find out there is not 100% true.
We'd love to get on the list if timing and details work out. I'd imagine that they might be priced out of our reach. But, if not we're serious. We've spent 4 months putting together a ray tank and we're just starting to shop. Would you email my son and I cost and details to petronej@hotmail.com