Hi everyone, just looking for a little advise. I feed f/t mice to all of my snakes except for the ball pythons (can't get them to eat f/t, only live). Anyway, I am raising mice for my snakes and want to freeze the pinkies and hoppers. What is the most humainly way to kill them? Someone told me to just put the pinkies/hoppers in the freezer and they will die, but that sounds cruel. I heard about using CO2, but how and where would I get it?