Self-Culling Xenia???????????

[brlegend]

My Xenia does great for a few months, spreading onto the rocks around it and pulsing nicely. The puzzling thing is that after a few months it starts to die back for no apparent reason. The water parameters remain the same and dosing schedule hasn't changed. What is the most puzzling is that is doesn't completely die but it mostly dies and a few small pieces are left which begin to grow and then repopulate the rock they are growing on. It has me stumped. Any thoughts would be greatly appreciated.

[sean1]

You may have rapid rissue necrossis. If you do you could buy some commercial coral disinfectant or remove it from the tank and syphon the dead tissue off.