It says good for 90 days. I realized after I did it that's probably not the best way
But am I right for putting the 1/2 teaspoon in the gallon waterer? Do you think it'll do what it's supposed to do, kill gapeworm? Thank you for your reply!
I think I did this wrong. I mixed the whole pack into a gallon of water and then from that a took 1/2 teaspoon and mixed in my chickens 1 gallon waterer.