I am so confused, next week I will be getting an 8 week old bullmastiff puppy.The breeder is feeding Pro Plan puppy which I really don't like but anyways my question is what type of food should I go with. I was looking into Taste of the Wild Sierra Mountain( lamb) but I'm not sure. Would like some suggestions to help me out. I will be feeding the pro plan for a little while until i find something better. Don't want to do to many changes at once. Thanks a bunch in advance.