I adopted a Kitten 6 week ago, and when I brought him home I noticed his ears were very dirty, black/brown waxy stuff, like earmites. So, since then i have been trying to clear them naturaly, olive oil, yellow dock, things like that. Well, his ears still becoming super dirty after 6 weeks of this. Now to symptoms, besides dirt in ear, he does not scratch or shake his head. Doesnt seem to bother him at all. His ears are not red, inflammated, bleeding, etc..none of the usual signs of ear trouble. And, my older cant had been in contact with the little one every day, and he has not developed any symptoms, no dirt, nothing. So, I starting to doubt its ear mites.