I managed to just hook the lip over the top of the tank and it's staying there, woke up today and he atleast as far as I can tell it's a he, had a small portion of his disk missing not to sure if the other rays maybe managed to punch him or he cut it on something. Yolk sac is getting smaller went on a trip to the malls today to try and find some black worms or tubifex worms and none anywhere in town
I got some sinking shrimp pellets for bottom feeders and I have some frozen seafood medley that I feed the big guys so hoping he takes to one of these