The reduced dose is supposed to help them build up immunity. FWIW, so far I've never had to treat the same batch of chicks twice, so you'll probably be okay.
-Kathy
Keep them warm, and you could try giving some Corid orally to the ones not drinking. The dose I give is 0.02ml per 100 grams, which is about one small drop per 100 grams of body weight.
-Kathy
Edited:
Give undiluted once and encourage them to drink the medicated water.
But if all they have is the powder, get it. Hope I didn't confuse you. :D
Powder dose is 1.5 teaspoons per gallon for 5-7 days, then 1/3 teaspoon per gallon for 7 days.
Liquid dose is 2 teaspoons per gallon for 5-7 days, then 1/2 teaspoon per gallon for 7 days.
Ignore dosing directions on...