Tucker has dirty ears. They don't smell bad and don't seem to hurt him but he does have a dark waxy buildup in there. I cleaned them a few weeks ago and they are dirty again. We have a vet appt next week so while we are there I will have them checked for mites/infection. Is is possible for him to just have dirty ears? I don't have any dog ear experience so I have nothing to compare it to but I doubt it is normal. Prob something nasty going on in there.