Yeah, that's a terrible photo. I'll try again when I get home tonight. On the bad picture I currently have, I would point to the two blobs of bubble algae on the left tip of the stylophora. Those bits of bubble algae are perched atop a sort of fuzzy black lump, which itself is perched on the stylophora. There are two smaller chunks of the black fuzz on the right tip, too, but they are more difficult to see. I'll try again.