My chicks are between 4 and 5 weeks old. I have them in a big tub ( 6 feet by 3 feet and 32 inch deep) I have 8 of them. My coop is done but the fencing will not be done for another week. I have no where for the chick to run free. I read some post where some have been put out after 3 weeks or so. Will it hurt the chicks to stay in the tub for another week ? We clean the tub once a day. It is the first time I have had anything beside a dog. Any and all advice is more than welcome.