Our corn snake has been on the Munson plan since day one. We have had snake since it was one month old. It is now one year and seven months old this month. It now weights 494 gms. Live in Ottawa, Ontario, Canada. Up until this Christmas the snake ate regularly only missing a couple of feedings due to a shed. Mid December the snake stopped striking the mouse and wrapping itself around it prior to feeding. Since that time she has missed a lot of feedings. As of the beginning of February she has stopped feeding altogether. Offered her food on the 5th, 15th and 20th. Just ignores the mouse. Leave her with it for one hour before removing her from her feeding bin and returning her to her tank. The house is 68F during the day and 65F at night. The large cave in the tank is 88F. The tank is 55 gallons and the UTH has a footprint of a little more than 1/3 of the bottom. There are two water dishes in the tank that are changed daily. How long can a snake safely go without eating. Is this a normal thing for an adult sizes snake to do during the winter?