Total NOOB. Please take a look. Kinda early. I have 5 others in mason jar, 3 had to flip over because halted growth and now around the halted line have some fuzzies. They look like this take a look and tell me if you think its COB.
Also had to post my pic on a fake myspace here is the link for the photo:
http://viewmorepics.myspace.com/index.cfm?fuseaction=viewImage&friendID=538656653&albumID=346136&imageID=1564193
Looks like spreading myc To me.
Is that exposed substrate in your FC? It might be mold on the edge of that mycelium, but if you have uncolonized substrate in your FC it will get infected.