The mother is a marble, but the pups don't look like it. I have seen several captive bred pups that had a marble father but a regular mother.....the combination seems to produce very nice motoro pups, but not marbles. I think you'd need both parents to be marbled to have marble pups. My opinion, those rays should sell for the standard motoro price. If you can get them for $98 through the store you work at, I'd go that route. Just my opinion.
Pat
Amazon Stingrays