Rapid Tissue Necrosis (RTN) – A Reef Keeper’s Nightmare

Your tank is on cruise control and all SPS corals are in a happy zone, growing and thriving like you had always imagined. Then one day the lights come on and your eyes zero in on a dead coral. What the heck? How could that happen when everything was going so well? Reef keeping can be a humbling experience, trying the patience of both beginners and veterans. Sometimes bad things happen due to poor husbandry and other times there is no clear explanation. I can sleep better at night when something bad happens as long as I know what caused the problem, allowing me to prevent it from reoccurring. That’s just the way I am wired. I like closure. It’s those mystery events that drive me batty