Wow, I am glad to hear about your experience because I passed exactly the same "grapefruit pulp" looking things the first 2 weeks of my parasite cleanse (I used Paragone). I didn't know if they were actually parasites or not, but they were something new that I had never seen before. They floated on the top of the water and covered it completely until I got them all out. Just glad to know someone else had the grapefruit stuff too! :) Did you take any pictures?