So I joined a ferret group on facebook, and I told them what I was feeding the boys, and all of a sudden I got a lot of hate from people about feeding the boys Zupreem, and got called a bad ferret parent because I can't afford raw feeding or the absolute top quality foods because I am in school. I buy the boys Zupreem 100% grain free kibble, and they like it which is good because both Mushu and Smokey are picky, and I have been doing extensive research cause everyone is determined Zupreem is giving ferrets bladder stones, but during my research I found out bladder stones in ferrets are developed because of allergies not because of food. Smokey and Mushu haven't had any health problems being on Zupreem. Smokey has actually gotten back to a healthy weight being on it. 

So I am curious what is your opinion on Zupreem 100% grain free food? and what foods do you suggest. (Zupreem and Marshall's are the only foods availible in my city, so any other foods I would have to have shipped to me)