I may have messed up. I hatched 8 chicks successfully and all seem healthy but I’m just now finding out about medicating them. What I read had them on a schedule with one vaccination at a few days old etc. My chicks are 8 weeks old; is it too late? I prefer putting medication in the water because I don’t want to vaccinate them myself. I must add though, I did use medicated feed (I know that only covers so many things though). What should I do about Merecks and other serious diseases?