Jack is a little over a year old. When we got him at 3 months, he didn't have tear stains. Within a wek he developed moderate stains under eyes and on his beard. Well after trying and reading everything, I changed his bowl to stainless and now give him only distilled water. The beard stains are gone but not the eyes. I figured oh well, I love him anyway. Now we have little Jill. She is three months. She comes from a line that gets eye crusties but no stains. I have seen grandma, mother, uncle, sister (from a previous litter, same parents) within a week she started getting tear stains. Hers are pretty bad. I am still using the stainless bowl an distilled water and the same food that she got from birth. In fact, I switched Jack to the new brand. What is the deal here? I can't figure out why dogs coming into my house develop stains. Any Ideas? I am losing my mind.