lduncan Posted January 11, 2005 Report Share Posted January 11, 2005 Hey guys, what is RTN? Good question. Know one knows for sure what it actually is. Current thinking from Eric Borneman is that it is a stress induced shutdown of a coral. RTN = Rapid Tissue Necrosis, it is also known as SDR, ShutDown Reaction Really only common on acropora, and some other sps corals. It happens over a matter of hours, tissue just starts peeling off the skeleton leaving nothing but the bare white calcium carbonate. Corals can die within a couple of hours from this, while appearing to be fine up until the point of shutdown. No really effective method of stopping it, maybe get 50 / 50 success rate from fragging, if done early, and well away from the affected area. It is not thought to be a bacterial disease, or no one has isolated the bacteria responsible for it if it is. Layton Quote Link to comment Share on other sites More sharing options...
cracker Posted January 11, 2005 Report Share Posted January 11, 2005 Thanks. Quote Link to comment Share on other sites More sharing options...
cracker Posted January 11, 2005 Report Share Posted January 11, 2005 I wonder if could be related to a sudden PH change. Quote Link to comment Share on other sites More sharing options...
reef Posted January 11, 2005 Report Share Posted January 11, 2005 RTN is normally a problem with Acropora, I have not have much success saving acropora that have it., the best advice is, if your acropora has it, throw it out. You will do you tank a favour. Quote Link to comment Share on other sites More sharing options...
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