...NOT. *shrug* who knows. It looks to me like some remnants of fermentation going on. My Chaos Love Magnet had some wierd tiny little bubbles come to the surface recently. It was dark in the room where I keep it so I couldn't tell what they were. I was a little freaked at first, but was like eh no worries. They soon subsided back into the 5 gallon abyss.
I can't tell by looking at the picture (it is kind of blurry where I am trying to see) but the one cluster of foamy stuff looks like a mold but I can't tell. Keep an eye on it and if it starts to look fuzzy (like hair) as seefresh says you'd have a mold.
Event Horizon ~ A tribute to the miracle of fermentation.
Brew what you like. Do this, and you will find your inner brewer.
probly nothing. don't sweat it too much. It takes a pretty serious bug to live in beer. and in my experience it's ussually obvious. If you are question ti it is most likely fine. Pop the top off your airlock and give it a whiff. you'll get a moldy wet dog like smell if it's mold.
that's the way my stuff looks as it begins it's primary fermentation, usually they would densify and come together to form a preliminary krausen bed. The fact that your's is in clarification probably means some residual fermenting. Have you rausted the carboy recently? Have temps gone up recently? That's what I think it is...