Oh I'm SO sorry about the news that Minnow has cancer. I know the feeling, having gone through almost the exact same diagnosis with my Goldie earlier this year. All you can do right now is make sure she's comfortable and lives as pain-free as possible for as long as possible. You will know what to do when it's time. Just enjoy her for now -- it's SO hard and I really do feel for you and little Minnow. Gentle pets and snuggles for Minnow and hugs for you.