Is there such thing as "full" in frogs?

[Murray of the Deep]

Yes they can become full. Most will eat large quantities of insects and never seem to be full, but they usually stop once they are.

Some frogs and toads can be picky eaters and shy away from trying new foods. Some frogs and toads don't like roaches if the roach in question has spiny legs. This can turn them off of eating roaches. You will need to find something the toad will like aside from just mealworms.

that's why my cane toad stopped eating and also how long should i wait till i feed them again? and also is it safe to drop jumpingless (no hoppingleg) hoppers on his tank?