Hey everyone, this is my first post but have followed the forum for a while. I had made a few batches of cider before and everything went well. Except for this time. I started with 5 gallons fresh cider, uv treated, and unfiltered. Added three pounds honey 3 pounds corn sugar and white labs champagne yeast. Things started out normal with bubbling in the airlock, about three weeks in it stopped. I picked up a hydrometer because I didn't think it had finished yet. I was right it had stalled at 1.02. This is where things started to go wrong. Went back to my local brew store to get more yeast and they were out an not getting more. So I picked up some white labs high graviety yeast and nutrients. I repinched the yeast added cider and the one nutrient pill. The next day it was bubbling and looked like it started up again. Fastforward two weeks and I am about ready to ditch the whole batch. I can home from being away and it looks like so crazy fugus thing floating on top. I have never used high graviety yeast but doubt this is normal. Going to guess some that somehow I introduced bacteria at some point and it took off like crazy. Has any one been down this road or have suggestion for the next batch. Thanks