do report back how it goes!
In my mind you have to rate things. When comparing to constant fighting, and physical abuse, well the peepers don't look so bad.
It is frustrating when one you had an established flock and all was working. But different birds take tight confinement differently. Try...
First I have never used them, but the reviews are excellent. Secondly, IMO you need to get this stopped ASAP. Thirdly you really cannot wait, the chicks are getting bigger. Fourthly - it sounds like you have limited space options.
So you need a quick solution, to get you over this hump of...