Small disclaimer, the hornworm in question is a pet and not a feeder. My frogs wouldn't eat it so now it's my little pet.

So I've always heard that hornworms don't need water crystals because they eat it in the veggies and fruit.

However when I gave him celery, orange, lettuce, carrot, watermellon, and water crystals he went ham on the crystals.

Is this ok to feed him if he wants them?

Thanks