Found a garter in the cold!

[HoneyBee]

Hello everyone. I am new to this forum and to snakes! Ive always been an avid animal lover, have always enjoyed reptiles, but I have never personally owned one. I have however caught and picked up plenty of local snakes, frogs and toads to look at and let go.

I live in Connecticut USA and a week and a half ago I found a garter snake outside in the cold this late November that my cat somehow found. It was lethargic but irked off, though due to the winter weather, it hardly had the energy to try and strike. I thought it seemed odd that it was not hidden for the winter months and brought it inside where it seems to be doing well.

After doing research I came to understand that its probably to cold now for it to find a home someplace past the frost line and I decided to keep it over the winter, though ive come to really love the little guy, I make keep him as a pet, he/she is quite docile and taming very well.

I planned to get it a nice terrarium habitat to live in, but I have a few questions still. My main concern is its eating. I bought it small feeder fish from the pet store but it was not interested in them. I caught it some worms from outside and it has eaten a few times, however, maybe five or six days ago I managed to get it to eat a pretty fat worm and it since has not seemed interested in any more? I read they should get at lest two a week if not more, so I am concerned about it not eating? Is it to full still? maybe not warm enough to want to eat? should I buy it some pinkies?

Right now Im keeping it in a plastic 10x10 tub on pine pellets for substrate, with a water dish a stick and some things to hide under. I have no heat lights so for now he lives in the temperature of our home wich is maybe 65 to 70 degrees.

Im not sure the age of my snake, maybe a "teen?" Im sure if seen thicker garters then mine, maybe an inch around at the thickest point and 19 inches long?

Thanks in advance!