hello all. i have a couple of ?s i picked up some wazine today because im gonna worm my chickens. on the bottle it says for each 100 birds give 2 fluid oz in 2 gallons. i only have 5 im worming how much should i mix to a gallon of their water and how long should i let them drink from it. also is this a one time worming for so many days? and last of all is diarrhia a sigh of worms???