I have two ferrets one male who is 5 y/o and a one female who is 2 or 3 y/o. My male is being treated for adrenal cancer with lupron injections. Currnetly I am feeding them an 8 in 1 food. They seem to really like the food, but I am just wondering if there is a better food that will help supplement them better in their diets. Also on occasion I add in ferrtone to their food for their skin and coats.