I feed my 5 cats Natural Balance Ultra premium cat,(petco) so the ferrets can steal if they want and I dont worrie about it's I use to add a 6 lb bag of NBUP to the ferret mix , There ferrets mix is Totally ferret , Innova Evo cat / kitten & 1/2 bag Innova Evo caninie small bites red meat and 1/8 c marshells added to soup only , Evo is 50% protine I think fat 22% , the canine is 40 % , they came out with a Innova Evo ferret ,but its the same as cat/kitten , I cant fine the evo ferret I have to order on line |