My now-fat evil orange cat gets purina gentle formula dry food free choice, because otherwise at feeding time they both would gulp down dinner then throw up all over. And the old black and white cat with hyperthyroidism gets that plus a small amount of canned food, whatever he will finish as we watch him. Otherwise evil orange comes in and hogs down the can food. Really need to get rid of the orange cat, he has been ****** off ever since I brought home a human baby. Human child is now 6. Hisses at child, dog, people, hides most of the time, takes out his anger on all the woodwork in the house when no one is around. Don't want to stress out the old black cat though, not that they interact much.
Orange cats are trouble. Mine is a real PITA. It's a good thing he's lovable.