i only just found this thread but along with many others i am very sorry for the terrible loss. i hope something can be gained from any offspring and existing pictures of such a beautifull ray.
Hi,
Is there a correlation in your mind between the blood poisoning and the unique color?
Should she be mating with certain males only? Who are the parents of her? Could you understand how the pups look like (were they as white?)
Many questions, probably few answers....
It a real petty, but if we could learn for the next time.....