Muffin and Skittles just got into a big fight, and Skittles has come away from it with a bleeding ear. We have cleaned it. They are 6 month old sisters and have never fought like this before. I can only think it may be because we had to bath them for the end of their ringworm treatment, and the cage has been completely deep-cleaned, so all smells are gone. We are keeping a close eye on them. Is there anything else I should do?