I was going to add what Canis Lupess just said.

Cat food is high in protein. THAT is why dogs love the taste. However, their body can't use all that protein, so the kidneys work overtime getting it all out of the blood stream, and out of the system. This means the kidneys will fail over time. They can't keep up that high work load.

Dog food is . . . dunno. My cats eat it, too. Don't know why they like it, they aren't supposed to!

I feed everyone in different rooms. Food goes down, doors get closed. With this many pets, I am using 3 bedrooms, one bath and one hall. By the time I get the last one down, the first ones have had their time limit so I just keep going around opening doors and lifting up dishes again. No one is on free feeding, except Ruffles overnight. She sleeps in a bedroom by herself with a full dish. Sometimes she eats half, sometimes 3/4. During the daytime, she gets fed anytime she asks, in a room by herself.

It is musical doors around here. Everyone has different food, as well. Light cat, regular cat, senior cat, kitten kibble, and z/d low allergen. Two dogs are on soft food which has to be made up specially (2 different types, naturally ) and 2 dogs are on dry kibble.