Hi everyone. I've had my new cat Cirrus for 6 weeks now and he's becoming very friendly to me. He loves me to pet his head and scratch his back. Sometimes he seems to want all of the attention. This past Saturday when I was grooming Sunny, Cirrus came over and nipped him for no reason at all. He's also come up behind Sunny and jumped on him and cornered him in my bathroom. Sunny becomes very scared and submissive at the moment but will later play chase with him. Cirrrus came up to Storm tonight and nipped him too. Storm just sat there like he was shocked at his behavior. This is the first time that I've seen Cirrus nip Storm. In the beginning Storm was nipping Cirrus.

Should I be worried about Cirrus's behavior? Since he's the largest and strongest of the 3 cats, do you think he's trying to become the alpha cat? Right now Storm is the alpha cat. When Pepper was alive, he was next in line so Sunny was the lowest in the cat hierarchy. I just want my 3 cats to get along. Should I try to do anything or should I just let them work it out?

Thank you in advance.