I'm raising my first flock and have ten chicks - barred rock and EEs. They are all really active and appear healthy except I've noticed a few of them sneezing recently. When I was holding one of them today I noticed she has a runny nose too. I've heard of medicating their water... but I'm not sure with what??? I did get an electrolyte supplement from TSC, but not sure if this will suffice. Any ideas, advice, or is this just normal?? Also - I think I'm a bad mom because I've been giving them worms out of the garden while I'm weeding and I just read a thread that they need grit to digest them?? They are currently eating crumbles. Do I need to put grit in the brooder too??