I have a couple of my breeding females who I think need to brumate. Note eating and spending most if not all their time in the cold end. My problem is finding a good safe temp to put them in... I have a refrig. that won't get any warmer that 40 and the coldest spot I can find in my basement is 60. I think one is too cold and the other is too warm. I only want to cool them for a short time and then get them eating again. I've never had to put any in the cooler and I'm not sure which direction to go. Any help would be great.