We could not find any Corid where we live and we found some Sulmet and gave it to our 2 sick chicks so we wouldn't lose them. We had 10 chicks that shared a cage for 2 days and we moved 4 of them out and lost 2 of them to cocci and we don't want to lose anymore so we gave it to our Bantams but not the Silkies (They were the ones that lived with them for 2 days). Can we give this to the Silkies just in case? Also, can our oldest chicks have this to prevent them getting it too? We think one of them may have it but not sure they live next to the sick ones in a different dog cage.