Yes you sure can clean them, you can buy ear wipes at the pet store or you can put some warm water (some use alcohol) on a cloth and gently wipe it out, don't go too deep though or you may damage something. It comes off very easily. My vet cleaned Bubby's ears with a Q-tip over the weekend, to each his own! I usually don't have to clean their ears since they groom each other so well, hehe.