Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
Without a picture, I'm guessing it's the same thing that happened in my boyfriends tank.. after a week or two they were back to normal and apparently spread to new places in the tank.. If you put up a picture I can tell you for sure if it is the real thing or not