Quote Originally Posted by Parsons483 View Post
The shed isn't insulated well. And it can get -30°C in the winter

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That's -22F. Down size, keep two females an a male in the 10 gallon tank in your room. Gas the rest. Or find another breeder or friend that will take your colony an sell you some prey cheap. It's not cost effective to heat a shed at -22F. I don't even know if building an insulated box would work that cold.

Man I hate the cold! Good luck!