We are dog sitting my brother-in-law’s dog for a few days. Izzy (guest) is tiny and is used to having her food out all day, nibbling when she likes. Jake (mine) is huge and wolfs his food down in two big meals per day. I can’t leave Izzy’s food out the way she is used to, or Jake will take it. He is also 13 and very set in his ways.
Separate them for large periods of time? Will she adapt and eat bigger meals when hungry? Other ideas?