I have them in our second bathroom, a totally enclosed shower. They are in a box and about a week old, maybe less. I havent started building a coop, but i begin tomorow. I guess since its been 15 years since i did this and i dont remember how fast they grow. How much time do i have until they need to get out of the box? There are 6 in there, and its a pretty big box, that i keep clean for them. I just dont think i can get the coop totally built in 3 weeks.