More than one rooster

[aart]

you'll need more like 10 hens per roo.

The 'rooster' to hen ratio of 1:10 that is often cited is primarily for fertility efficiency in commercial breeding facilities.
It doesn't mean that if a cockbird has 10 hens that he won't abuse or over mate them.
Many breeders keep pairs, trios, quads, etc
It all depends on the temperaments of the cock and hens and sometimes housing provided.
Backyard flocks can achieve good fertility with a larger ratio.

That's a 25-square-foot coop. For 10 birds, you need a minimum of 40 square feet, more since you have multiple roosters. If your birds aren't all sleeping in the coop, something is wrong with it.
Can't guarantee it'll fix your problem, but your coop is too small and you should do something about that.

Ditto Dat!!^^^