Boo Is Being Agressive, cyber shoulder room Options

[nyzki]

Hello all,
I have noticed lately that Boo has started becoming more agressive towards the other cats mainly the other kittens.
He is hisssing and swating. He never used to behave like this. Could it be that he is jealous ? Or he just does not want to share his space with the other little ones? He used to get along with all the cats. But lately he seems more angry than usual.

I am going to try and find a home for the last remaining kitten this weekend. I dont think that Boo would really hurt the other kitten but, I think that I need to get things back to normal for Boo asap. I know that he is not real happy with the living arrangements right now. What can I do in the meanitime to maintain peace in my household for all of us?

Boo, Poppy, Muse, Nyzki