I currently have my 10 day old chicks (27 of them) in this brooder box. As you can see, they may last another week in this but will need something bigger. They are not yet ready to roam in the coop because of the lack of full feathers. I understand that will be at about 5-6 weeks of age. So I need a bigger brooder box to last until then. So I bought this $10 pool and brought it home. The plans are to put hardware cloth over the top of it. The concern with this, is that the sides of this pool are even shorter than the current breeder box and these little girls are jumping and flying in short spurts! Yet they are growing so fast, I don't think I can keep them in this brooder for any more than another week without them becoming too crowded: So how can I increase the height of the pool walls? Ideas?