I have ran out of food! Ordered it last Tuesday, but won't arrive till this Tuesday. It's NEVER taken this long to get, but my Bullies have to eat! Ok, my question is....What can I feed them to get them by without causing upset stomachs, and loose stools if I buy a small bags from Petsmart of some other food? They don't have what I feed them there, or locally. I feed California Naturals Kangaroo and Red Lentils. Much help is GREATLY appreciated! Thanks!