Try kool-aid! I'm serious. I'm not saying give them a ton, but the sweetness really picks them up some and gets them interested, as does the color! I have heard of people giving sugar water to weak chicks for energy, and you know that gro gel stuff has food coloring or something in it, so why not? I can't see a little hurting. I had a weak chick this morning and thought "Hmmmm" as I was drinking down a glass (I'm on a wicked kool-aid kick myself) and the little guy went to town on it and is now peeping up a storm and drinking plain water/eating.