Can someone tell me what is happening to my coral?

[maclear]

Is it dying? Can I help it? Thank you!

 

[maclear]

Sorry I don’t think pictures posted

 

[Cell]

Seems to be some tissue recession which is typically a sign of decline.

 

[maclear]

Seems to be some tissue recession which is typically a sign of decline.

Do you know how to save it? Both plate corals grew in the tank. We did not purchase and place them there. Thanks for your help.

 

[Cell]

Post full parameters to start and a full tank picture is always helpful when diagnosing issues.

 

[maclear]

Post full parameters to start and a full tank picture is always helpful when diagnosing issues.

 

[Cell]

Nice. Are you testing for Alk/Ca/Mag? Nitrate and Phosphate?

 

[maclear]

I have not tested for anything. I will take a water sample in today. They grew in the tank. Actually, my tank grew one and my friends tank grew the other. He had to break down his tank so dropped his coral in my tank. They have been living well for a few years and now peeling back. I will post more info when I have it. Thanks for your help.