i have changed my diabetic cat to all canned food recently. When i start back to school next month i am not sure what to do. i have 3 more cats who will gulp down any wet food that is around. i am gone for 10 hours a day. I don't want him to run out of food during the day, and I don't want to put down dry food for that long, he would eat too much. If I separate him from the others, how long can the canned food stay out? Should I worry about that? How about leaving 2 bowls, some frozen that could thaw during the day? Are there feeders that will keep it cold? Thank you for any suggestions. Terry and kitty Bill.