Xenia,anthelia, kenya tree problem.

[Madreefer]

I had the same problem as you but it's with a devils hand coral. I just ripped it off and coated the area with kalk paste. But if you take the effected rock out and just torch the spots it's not going to hurt anything if you do a single rock every few days. If you need a hand or some kalkwasser just give me a call. Enjoy the summer! Does'nt it suck?