i have been dealing with the tear staining & thought it was "normal" for yorkies as my other dog doesn't have any. thank you all for this great info. i will definetly change the water as i have well water with culligan & still think its not right. i will also consider the food change. just one question what is the best way to clean the crusties. i just use warm water & a wash cloth, & ollie hates it so i usually just give up. now i am on a mission!! thanks again