I've posted a couple threads about this a while back and got some good advice on treating chick that had become weak and would lose they're balance and eventually die. Well after treating with sulmet for a while they started improving. I go to check on them yesterday evening and find one acting like the others that had acted. I had my camera handy so I decided to take a small video of the chick so you might get an idea of what they are doing. It doesn't walk around much and when it try's to it stumbled over. And for the record I did this video yesterday evening and when I came to check on them this morning the chick was dead.