I had 7 chicks hatch last Monday, so they are a week old. All of them are a lot bigger than when they were born, except one. This one chick is still soo small, hardly moved, and breathes rather shallow. It is alive, but has a hard time with balance, when it walks it uses it's wings to help balance it. I had it isolated for a little bit, when the others picked on it. They no longer pick on it, but it does get stepped on some, but it just gets up moves a little way and lays back down. It eats, drinks, poops, and sleeps a lot. Any ideas would be great, thanks in advanced.