So yeah, I made a lager starter on Sunday night. I went to harvest some last night, and I noticed a black spot on the neck of the flask. It's only on one side of the flask, so I decanted from the other side. The actual starter looks and smells completely fine, and I'm going to pitch it anyway, but I was wondering if any one has ever had this? It looks like the same black stuff that is sometimes in the krausen ring in the fermenter. It's not fuzzy, but it's black and slimy looking. (No pic, because I forgot to take one. I'll try to post one later.)