I live in Ontario Canada. My 2 garters slowed their eating down at the end of Sept. Now they've pretty much stopped eating for the past 2 weeks. 1 is 30" long and been thru a couple winters, the other is at most 12" and may be her first winter. My question is, even thou their tank is fairly warm, do you think they know it's time for a rest? And how long can they safely go without food when I move them to a cooler place? Any help you can offer is appreciated.