u/Content_Actuator5608

I have a 4 year old garter snake who's a little over 2 feet and currently lives alone. Her sister unexpectedly died about 2 years ago. I've been looking for a garter around her size and age but when I find one they are pretty expensive. Am I able to cohab regardless of size as long as they are regularly fed and watched when they are? Or should I continue to try and find a similar sized snake for her