Welcome to the forum! I am so happy to hear that your son & Ralph were reunited. As Steve said, slugs are the favorite of the Dekayi. You can set up a slug colony for the winter if you can find a bunch now. PM me for instructions on how to. It is very easy to maintain.

My dekayi will only eat slugs. They also tend to like things cooler than the garters seem to.

Good luck with Ralph. They are very nice snakes to be friends with