my Oscar man is bullying the EE chicks i let them out with the bigger ones and the hens really didn't care but Oscar did he kelp pecked them hard as he could and attacking them! and
I hit him so hard that he flew on his back what should I do I really don't like hitting my birds!
Quarantine him. You really shouldn't hit your birds, especially not a rooster. You'll succeed in making him mean. Plus you should wait to introduce chicks until they're about the same size as the older ones.