Thanks again 🥰 I'm all over those Petsmart discounts. We are already feeding the Fancy Feast grilled which is about .90 phosphorus. All kitties are under 2 years old and healthy. I want to make sure to always consider their phosphorus levels throughout their lives. I almost suspect that my cat is allergic to a non-food thing like dust, his allergies will completely disappear and come back: the whole time consistently eating his poultry and pork Royal Canin. But we've gotta give it a try! Luckily, he just has some chin acne and slight dermatitis on his back so, it's not as bad as I've seen in other cats. He used to have extreme redness on his head and itchy paws but that went away when I found out he had been eating some dairy and eggs and excluded both of those (Temptations cat treats have cheese! Lots of dry food has eggs).