Howdy folks, this is my first post. I'll put up an introduction here directly. To preface, I'm very recently the proud keeper of three Checkered Garter Snakes (Thamnophis marcianus), two medium sized females (20 inches and 24 inches, respectively) and one smaller male (11 inches), which segues into my question quite nicely:

Would it be safe to house the females and male together, or is there a predilection for cannibalism? I have done extensive reading on the subject, and each guide seems to have its own take on the matter, so I'm looking for a consensus either way.

I am interested in breeding them when the time is right out of a desire to not only repopulate my local area with baby garters, but also to look for unique color morphs and albinism, however I want to try and provide as much safety for my tiny male as possible.

What do you good people suggest?