Today we bought our first chickens ever. I got a black silky and my husband chose a pheonix. I noticed after we got home the silky has an eye infection of some sort. I bought some terramycin today and have applied it once to far. How often should I apply it? Im scared the silky isnt going to make it though, I dont know if she is just younger than the other, but it doesnt move around to much the other is super playful and runs around and jumps on us but the black silky doesnt seem to do much :-( I have been watching them all day and they are eating great and drinking water. How long before you can tell if they are going to be male of female?