Got both of theses cats when they were 6 weeks old . They are 1 and half right now and they are litter buds . Jay ( the black and white cat) is a very passive cat . He is so innocent, I have seen him get attacked by other cats and he just sits there and curls up. Never seen him hiss in my life . Rudy on the other hand can get very aggressive. He started this while young when I give him treats he will visiously hiss . He also hisses at house guests . But he recently started attacking his brother . One day I was letting jay chill in the yard outside. Then after awhile I let Rudy go out there with him . Rudy arched his back puffed his tale and started screaming (loud high pitch cat noises) . Then when they both went inside he started attacking his brother while his tale is puffed and while hissing . Poor jay just runs and curls up . Jay never done anything to Rudy. he first attacked him like 3 months ago we nurtured both of them and decided to keep indoors cats . Most of the time they are okay with each other but Rudy acts up sometimes and it seems to happen for a reason.
3 days ago this annoying family friend came over . She decided to go to my room to pet jay , rudy was behind the curtains. When Rudy noticed her he hissed at her. When that happens my brother told her to leave the room now but she didn't do it Rudy hissed again the bitch hit him in the head . Rudy started going after . She started screaming and we kept telling her to stfu since Rudy hates loud noises and it's only going to make it worse. After we got her out, Rudy started without mercy attacking his brother while making those loud cat screams . Poor jay was just sitin there. I separated them and Rudy eventually loosened up .but yesterday and today Rudy will puff up his tale and attack jay out of the blue. It just happens this morning I have both of them separated . Every time I let Rudy out of the room to see if he calm down, He will just run up on his brother and attack him . Rudy can be a sweet cat but he needs to stop attacking jay. Any suggestions?