Open the lid then give him a few minutes to relax before offering food or doing anything in or around the enclosure. Keep the lighting in the room dim. Try dropping the worm and inch or 2 in front of the frogs face. You can also try grabbing the worm with the tongs and starting from the furthest spot in the enclosure and slowly move the worm along the substrates surface towards the frog. My third and final suggestion would be see if it will take crickets from tongs and get him eating that way and then try the worms again after it has been taking crickets consistently for a few feedings.

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