I have had the very same experience as you: green and wellformed feces. In addition to treating my candida, I do liver-gallbladder cleanses. Right after one of these cleanses, feces turned brown for a couple of days. Then it returned to green. I know I have a lot of gallstones, so maybe these stones lessen the amount of brown-colored bile.
that:
"What are the best probiotics? The best probiotics are found in the feces from a very healthy, (best unvaccinated), breastfed baby. You find anyone who has a 3 - 18 months old breastfed baby. You take diapers with fresh feces. Color of feces must be yellow, it must not be green, cause green color of feces indicates lack of good bowel bacteria. (Unless child was drinking freshly pressed wheat grass juice, or some other food of strong green color, green color of feces always indicates lack of good bowel bacteria. Yellow (or yellow-brown if child has eaten meat) color indicates healthy feces."