Ideally the peacemaker would be a calm adult rabbit who has been with other rabbits. Marriage Counseling Sometimes bonded rabbits break out in a fight after years of happy companionship. Once any health problems are addressed by your veterinarian, go back to bonding basics. To mask a strange smell, dab both bunnies with a scent such as vanilla. If you are near an HRS foster home, volunteers can advise you on a match- making.
Email is another way to contact experienced rabbit match-makers for advice and moral support.
Some matches are less likely to succeed than others. When one rabbit bullies the other in a variety of environments to the point the meek rabbit can't eat, drink or move freely, it's time to consider a long vacation. If despite your vigilance, a rabbit receives multiple bite wounds requiring stitches, call off the match. Certainly there are humans who are happiest in the society of species other than their own. Guinea pigs and rabbits generally get along quite well, with little or no introductory finagling needed.