You might want to get the fish out of the bag as quickly as possible. To make things complicated. the second you open the bag your exchanging CO2 gas for O2 which raises the pH, that and the combined effect of raising the temperature causes the ammonia to have a higher ion charge making it more lethal. In retrospect a ray that was shipped properly and acclimated properly isn't going to give a rats arse about the pH of your water.
Next time prepare your tank to about 70f which is the temp most fish will be recieved at. once the ray is in there go ahead and crank the temperature. that will slowly allow the ray to adjust to that.
yeh thats weird that u say that because the guys at the store gave me a discount for him so i wonder if they knew this and just wanted to get rid of him.. but the thing is that at the store he was eating and seemed ok.
