I keep searching and I need to know what amount of bleach for a 1 gallon waterer to treat candida. I had to put down one of my sweet hens, she had chronic diarrhea, and vent gleet, and prolapsed with her first egg. I could not get her better. Bless her heart. I am switching to a plastic waterer, and will get some copper sulfate later today. In the meantime, I understand a couple of drops of clorox can begin to treat the yeast. I know that it is not necessarily contagious, but don't want to chance it. We are planning a major coop cleanup with disinfecting, it is due this week anyway. ( do this once per month) I am giving them some plain yogurt as soon as I post this. Thanks for the advice!