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.
I know the when I was in salt water fish years ago some wholesales caught their fish with cyanide and they would eat and be fine and then die. Not sure this still goes on...I would go to another source and do a long QT while letting display go fallow to rid tank of ich.
In regard to disease, do you quarantine? Do you add fish in order of size and aggression? Try fish from other sources? Are your fish choices hardy types or difficult?
Due to a problem with Adobe Flash, Firefox has disabled it permanently. It had a back door for hackers. I'm getting adobe errors here. I guess the site still uses it.
http://money.cnn.com/2015/07/14/technology/flash-firefox-facebook/index.html