Introducing new chicks-black feet

[bmaxim13]

I have 3 Easter Eggers and 2 rhode island reds that are one week old. I got an Americana, Golden Comet, and 2 Midnight Black Magesty Marans today 25 hours old or so. The Golden comet and americana were quite large so I put them in with the other chicks that were one week old and they were totally fine. The 2 Marans are smaller and one has a black beak and black feet. I tried to introduce them and all the chicks started pecking the black beaked and footed one. So bad that they had his leg in their beak and wouldn't let go. So I separated the 2 black Marans into a different tank. However even with just those two the one with black beak and black feet keeps getting pecked at. What can I do to help prevent this?

Thank you!!

 

[nuthatched]

Can you section off part of the broder with screen?

 

[bmaxim13]

Can you section off part of the broder with screen?

I just did that...they are trying to peck eachother through the wire. So hopefully they get used to eachother and that's stops