Id Please ??? Here is the picture..Thanks

[Xenia King]

 

[Xenia King]

Does anyone know what this coral is. It grows flat.

 

[Xenia King]

Here are some more pictures

Here are some more pictures

 

[Ooulophilia]

hydnophora

 

[Sk8r]

I was thinking pachyseris [elephant skin coral] but you may be right with hydnophora: if so, it's a hot one, so watch its neighbors.