I am getting 20 barred rock and Rhode Island reds next Wednesday as day olds and I already have 11 chicks that will be 2 weeks when I get the new ones. Right now they are in a big dog crate converted into a brooder and it can be split in half with a divider so when I get the news ones I will split up the crate and then after a few days will it be fine to put them all together without any problems?