Cats often do better in pairs but there is a challenge in introducing a new cat to your resident cat. Set up a separate area for the new cat. Include a litter box, feeding/drinking station, a bed and some toys. Start feeding the cats at the same time on opposite sides of the door so they get used to the smell and presence of the other cat. Switch a few items between the cats such as beds, blankets or toys for more intermingling of scents. Lock up the resident cat on occasion and allow the new cat to get familiar with the rest of your home. Gradually allow the cats to check each other out through a slightly ajar door. Open the door a little further and lengthen their together time. Eventually they will reach a détente so to speak. Allow both cats to have their own private places to get away from each other as desired. Hopefully they will learn to be lifelong friends. For more information, contact your Montgomery, TX veterinarian.