Duncan coral Tissue loss?

Yrevanth · Sep 29, 2019

Hi All,

I have had this Duncan coral for the past 4 years. I grew it from just a few (approx 5) heads to its current size which is slightly bigger than a baseball.

I was doing some tank maintenance and ticked off the coral yesterday, but that is when I noticed these weird white patches on the skeleton of the coral.

The heads look good and are extended all the time. Wanted to see if this was normal, if not what do I have to do to fix it?

Yrevanth · Sep 29, 2019

Yrevanth said:
Hi All,

I have had this Duncan coral for the past 4 years. I grew it from just a few (approx 5) heads to its current size which is slightly bigger than a baseball.

I was doing some tank maintenance and ****** off the coral yesterday, but that is when I noticed these weird white patches on the skeleton of the coral.

The heads look good and are extended all the time. Wanted to see if this was normal, if not what do I have to do to fix it?

Only thing different which I can think of is that I have started dosing Vibrant to fix some algae issues and did a couple of recent 40% water changes over 5 days.

Should I buy some Lucila and dip the coral? What should I do? I am at a loss, as this is my favorite and oldest piece in my tank.