Coral rotting away, why?

spyderreef

Member
I don't understand what is happening. I have a leather coral that will be fine for weeks. All of a sudden a portion of the tip will start rotting away. I will cut off the bad part and it will be fine. I thought that maybe I should move it so I moved it higher in my tank. What causes this? It was a nice looking coral but pretty soon I will have nothing left.
 
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