I couldn't trust my bigger CKs with rays. Ate feeders when young, one was pretty defensive at feeding time. Charged across the pond and nailed a ray in the process of hitting a piece of food a ray was after. I pulled them out after.....
However I had a smaller one and it became a ray snack...
Considering what's going on, why not eliminate it as a possability? When in doubt pull it out??? LOL