I just received my baby chicks in the mail and one of them is much smaller than the rest. It takes a few steps and then kinda sits upright on its butt. It isn't interested in eating or drinking either. I have been dipping its beek in water with vitamins and electrolytes about every 20 minutes. It's eyes seem to be more open and a bit more alert but still barly walking and not eating or drinking. What should I do? Any help / advice would be greatly appreciated.