Adding week olds to 3 week olds?

[tororider]

I think the answer is going to be its a bad idea. I had to stagger my hatch and I have week olds in the brooder now, and I will have some more hatching the 25th, any chance that I will be able to put these together at any time? If so, when? Thanks

 

[Mahonri]

I would guess that once the younger ones are two to three weeks old, you should be able to put them together.