They like it darker and private so something between the nests would be good although I had one hen that insisted on making her own nest in the corner of the coop a couple of times out in the wide open. They also have piled up in the favorite nest together before. I have no idea why or how they would lay eggs jammed in one nest like that but they do.
Your mini wash tubs sound a little bit shallow but will probably work fine. I raised the sides of my boxes because they would kick out the nesting material when it was shorter.
Are the wash tubs going to be free standing? If so they might flip them over when they climb up on the edge to get in or out.
Shredded paper with minimum printing on it might work fine. Try it out. I've used paper before.
Your mini wash tubs sound a little bit shallow but will probably work fine. I raised the sides of my boxes because they would kick out the nesting material when it was shorter.
Are the wash tubs going to be free standing? If so they might flip them over when they climb up on the edge to get in or out.
Shredded paper with minimum printing on it might work fine. Try it out. I've used paper before.