Last weekend I attempted to make cactus pear mead. I found a recipie in a book and tried to follow it as close as possible. I used about 15lbs of honey and approx 18 cactus pears. I boiled the chopped up cactus pears with spring water for about 2 hours and skimmed any foam off the surface. I then placed cold spring water and boiled must in a 6 gallon carboy with enough space left to prevent foam over. I let it cool for a couple of hours before pitching the yeast. When I went to pitch the yeast i noticed that the top six inches of the carboy had a thick substance in it. Then a day later it is fermenting like crazy and theses small chunks are floating all around in the mead. My question is should I dump this batch out and forget about or is this batch still ok? What is the substance? Any feed back would be helpfull. Thanks!