My new cat (have had for 3 weeks) and resident cat refuse to tolerate each…

My new cat (have had for 3 weeks) and resident cat refuse to tolerate each other. I brought Louie home with the knowledge that they might never like each other but they would at least learn to tolerate. The first week seemed to go pretty well because when we let Louie roam and get a feel for the house Mia avoided him… but now… things seem to be getting aggressive. It doesnt matter where Louie goes or what hes doing (even just sleeping) Mia wants to attack him. Granted, as soon as he sees her he starts growling… but he only started doing that after she batted at him the first time. The episodes seem to be getting more and more aggressive. I would keep him in my room but its clear he wants to roam. And i find it unfair to lock her in a room after 6 years of letting her roam around the whole house. Before we got mia 6 years ago we had an older male cat, they got along well but he passed about 2 years ago. And according to the shelter Louie was surrendered with a sister but she was adopted without him. I need help on this one

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Sarah
6 years ago

3 weeks in is still a fairly new situation. This will take more time than that. Having said that, keeping them together but separate may help. For instance, a baby gate or two could possibly help you confine them and keep them separated when not supervised, but still allow them to see each other and continue getting used to each other. It also gives them their own space which may help with the adjustment period. Just make sure each has access to their own litter tray and food and water. A few kitty “distractions” might also be helpful- for instance… Read more »