We have four cats and 2 of them require special food (kidney and allergies), and of the other two one of them will eat any food he can find most of the time whi

We have four cats and 2 of them require special food (kidney and allergies), and of the other two one of them will eat any food he can find most of the time while the other wanted to be in control of her own food to the point where she would do the thing where she scratched at the side of the bowl trying to bury it, presumably to keep it from the other one. So just leaving some bowls out didn't really work for them, they'd constantly eat each others' food or eat everything as quick as possible to keep it from the other cats, with predictable (and gross) results. We got feeder bowls that only open with the right RFID and now they're all much happier and more food secure. Sadly there's no good ones on the market I could find that do both automatic feeding and the rfid-gating, so we still have to manually feed them but for the most part they don't care when we feed them anymore except sometimes in the morning (which is the most likely time for them to run out of food).