I feed one of my large stingrays a bluegill every day-BUT be careful of the fins. The bluegills fins can kill a stingray of it pierces the stomach or intestines. I freeze the bluegills to kill pathogens and then snip off the fins.
Blue gills are no more spiky than peacock bass or catfish ,crawfish shrimp ect. I think it's be a fun day for a ray. Mine like things that fight back. Big crawfish are funniest to Feed the rays because they battle back
Sent from my iPhone using MonsterAquariaNetwork app