What do all of you use at the bottom of your chicken coop/run? I was gonna use sand but would like to know what others are using. I have a little 6 chicken coop and almost ready to put the chicks in there. Also I would like to know where I should put their feeders? Is that something that matters? There doesn't seem to be a lot of room on the inside to keep it so I was gonna put them on the outside however I will put them inside if it matters. And lastly, if they have a predator proof coop do I have to close them in at night or can I keep it open for them to go in and out if they wanted?