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.
Could be the emerald crabs. I had one that killed three small fish before I narrowed it down to him. IMHO you can not trust them. I also had some that scraped off coralline algae.