I would cover three sides of the aquarium to provide security. Give them a 95-100 degree basking light with 75-80 ambient and leave them alone for at least a week then offer them any small reptile prey item from where they naturally occur.

If they are comfortable in their surroundings they will eat lizards or snakes. Getting Masticophis on rodents has proven to be difficult for me but they will do them by tease feeding.

These are very finicky snakes in my book and I hope you have some good luck.

Nate

PS they really are cool though huh?