I just got four - 4 week old chicks last week. 2 - Cream Crested Legbars, 1 - Olive Egger and 1 Welbar. When I got the chicks home I did notice one chick (one of the CCL's) was smaller but thought maybe it was just younger. Now 1 week has gone by and it really doesn't seem like this chick is growing. It seems a little puffed up and keeps it head "snuggled down" so I decided last night to isolate it and gave it some Corid in it's water (1.5 tsp/gal mix) and also put some of that water in it's chick feed. I'm not feeding medicated starter feed. I also gave it some nutri drench vitamin water mix in a dropper. There is no sign of blood in the poop, although I did see it poop on a paper towel and it was pretty wet and maybe slightly sticky. It seems to be eating fine and enjoys the food with the Corid water in it. Any suggestions what I should do?