I use the powder and the instructions I give are for the powder.
For active outbreaks, mix 1.5 tsp of the powder with one gallon of water. Mix a fresh batch each day for 5 days. After 5 days, cut the amount to 1/2tsp for five more days.
Give them a chicken vitamin with b vitamins in it after the second treatment. Watch them and repeat if necessary until they are 9 months old.
How do the chickens seem? If they are not drinking the water you need to make sure they drink it. I dip their beak into the water several times a day and they usually start drinking and feeling better by the second day.
I have not lost any chicks to cocci.