Re: Breeder rats question
I would either move them into the house where it is warmer or get flex watt for the bottom of thier cage if you intend on keeping them in the garage, but you will need a thermostat or rheostat or something of that nature to control the flex watt from getting too hot and cooking them.
Re: Breeder rats question
I'd just find a quiet corner and keep the feeders indoors for the winter months. They can burrow sure in those enclosures but unlike out in nature they don't have deep leaf litter, snow, somebody's basement or attic, whatever as a natural insulator. No amount of store bought bedding will, in my opinion, really do that job correctly. If you are raising feeders to feed your snake's good quality food and save a few bucks, then it doesn't make much sense to have them dying off or not putting on the weight you want efficiently.
~~Jo~~