I woke up this morning and went to turn there light on in my 55 gallon and every single fish I own was dead in there. I don't understand why if checked the water right away and everything was perfect. Any one know what could have happened?
Those fish are pretty hardy. One possibility that can wipe out your fish overnight while not affecting corals and inverts would be the Marine Velvet parasites. When was the last time you added a livestock in your tank?
"Nothing great in the world has ever been accomplished without passion". George Wilhelm Friedrich Hegel