Hi i hatched out two Serama chicks. They are 6 days old. They are being raised with Mama in the chicken coop in a separte broody box. I have a concern on one. It is so tiny its having a hard time walking I think because of its size. I have been feeding them med chick starter grinded up. I go check every few hrs and all it wants to do is sit under mama when it does come out it kind just cherps and sits there I hold it and it closes it eyes. Do you think its sick????? They other one is running around pecking and eating. My question is is there anything special I can do to perk it up vitamins special food Thank you