i would deff move the pup and try and keep live blackworms in the tank with perfect water perimeters and she should pull through everytime i get a wild caught ray they trip out for a good weeek and then start eating worms then in time shrimp etc wild rays have been through hell by the time they get to you also my wilds have lifted the rear of there disc and it eventually went to normal in time with the water being perfect and minimal stresss on the raY
UPDATE:
I got home last night to find her in full DEATH CURL and Gone about a hour after i got home..
It was crazy, she was eating the day before i got her, she had a pup while i was aclimating her, she never ate in 7 days and DEAD !!!!
I think i got hit by the Bacteria bug like the rest of the guys/girls on here..
Yea, pup is chillin' in the new 40 gal breeder I picked up yesterday... So far so good on her.. It'll be cool to see what kind of pattern she has being I have no idea who the dad was..