Nice to have you with us. As stated, not a Thamnophis but Storeria dekayi is always welcome on this page. Care is much the same as a garter but these guys are slug eating machines. The heat requirement isn't as pressing as with Thamnophis. Clean fresh water and lots of places to hide. They don't get very big at all. Slugs and small earthworms are very good foods. Some have even taken extra small pinkies. We have a S. dekayi expert on the page, hopefully Infernalis will come on and ad to the thread.
Garter Snake Forum - Garter Caresheet