Ok about 4 of my Hornworms have reached nearly full grown size which is 4 inches long and about as round as my finger. For a al7 month old male Pacman is one enough food for a nightly feeding. I've fed him the 5 nights and his belly is pretty full. I'm not going to feed him tomorrow. I gave him a large hornworm and one night crawler. So since there are so many experienced Pacman owners and breeders on here I would appreciate any input. His belly is protruding out to the sides and feels hard so I'm guessing he is completely full.