Our two male bunnies are about 6 or 7 months old, and they are vaccinated and neutered - they had the op about 4 weeks ago. They are a sibling pair and until a fortnight ago they were very closely bonded and groomed each other, etc. We pet them twice a day and they are very tame. However now they are having fights and there is fur everywhere. It's really quite vicious. We keep separating them as soon as they start fighting, and put the dominant one into the run, which has a little shelter. But I am starting to wonder what on earth to do, and whether there is any advice Mnet people have.