Just what I was waiting for so I could jump on the bandwagon! LOL. Just another person not setup properly to care for stingrays. The main tank is too small and definitely the quarantine tank is too small.
+1. Should have treated in the main tank as it will not harm anything else in the tank and prazi comes concentrated so you can treat big aquariums. Moving the ray around just stresses it more and a cramped tank does it no good either,especially if it is a new setup(not cycled properly)....water quality,etc. Feed something like earthworms that can stay on the bottom so they don't sucked up in the filter like blood worms. I would try to spot feed it and that way you will know how much it's eating.