Ouch Mike. Poor girl. As corny as it sounds maybe she appreciated the one more day. Don't beat yourself up, sometimes there are blood diseases or genetic disorders that have nothing to do with your care of the creature. Mine went 26 days and everyone helped me throw everything I could at it, sometimes you just can't help it, doesn't only happen with fish either. Honestly man, that importer should have never sold it to you without getting it stable and plump enough to survive an adjustment period before he shipped it out. I feel that not enough care was put into the sale of this wild caught ray personally, I don't know the whole story and I am jumping to a conclusion, but that is my opinion.