To answer Sam, I had 5 chicks in a Rubbermaid brooder all the way until I moved them out. However, they did get a lot of outside time with the older girls when I got home from school. So you probably will want something bigger than a 50 gal Rubbermaid tub, yes. I'd say ideally, a Rubbermaid tub would be good if you had two or three chicks. By the way, I moved them out at 6 weeks. I am going to start breeding ducks soon, so I am building a 5 by 5 ft brooder for them. Not planning on having huge sets of chicks at a time, at most 10. Even that's a lot. I'm going to have a broody hen hatch them, so she will be in there also.