On my dog (Bichon), not mine. How do you prevent it or clean it up? He drinks filtered water (not distilled) and eats Hundnflocken by Solid Gold. He has a stainless steel bowl (one for food and one for water).
I thought of getting Angel Eyes but it may not work and it's expensive to try. Someone at a pet store said it was just an extract of pure liver. I thought that was suspect.
What do you do?
Tear Staining