I picked up a pint of Wazine 17 today [I'm totally new to chickens and had no idea I had to deworm them]. The directions had measurements for flocks of 100. I'm looking for recommendations for a tiny flock. My flock consists of 6 chickens [pullets]: 3 six-week-old Speckled Sussex chicks and 3 nine-week-old Cochin chicks 1. Is it ok to give them a worm preventative of Wazine 17 at this age? 2. How much should I give them and what's the best method to make sure they drink all of the correct dose? 3. How often should I give them the Wazine to prevent worms? Thanks for your help!!