Will garters eat other snake species?

[katach]

What type of garter do you have? Garters don't typically eat other snakes although I have heard that wandering can be cannibalistic. Sounds like you have a good diet for him already. I wouldn't recommend keep the corns and garter together though, it can stress them unnecessarily. Welcome to the forum family! Can you post a pic of your male?

[norcalj]

Garters don't typically eat other snakes although I have heard that wandering can be cannibalistic.

I don't think that it's just wandering garters that can be cannibalistic. I think that the entire 'western terrestrial' complex has a tendency towards being ophiophagous. A couple of years ago, I had a coast garter that attempted to make a meal out of one of my blue-striped garters.