Okay, so just got a new cat with IBS that is on a special diet, but I also have a cat that eats normal food. I want to keep their food separate from each other, but my normal cat is picky and doesn't eat on a timer. I was going to get those Surepet microchip feeders that only open when a cat with the microchip registered to the feeder is nearby, but they are all out of stock. Any ideas, experience or other products that are similar to the microchip feeder you guys can think about?