So, I left a dead baby mouse in my snakes vivarium yesterday (11/2/16), how long will it be before the mouse decomposes? Will it smell? The temperature in the vivarium is between 77 and 84 degrees Farenheit. We freshly brought the mouse from PetsAtHome a few days ago. Please help. .-. Also, any ideas why she won't eat it? The snake is a corn snake and I think she's still a baby.