Neon green leather type?

[TheCoralNabber]

https://s31.postimg.org/u54yifq5j/image.jpg (https://postimg.org/image/u54yifq5j/)

Not sure what type this is. Thinking that it could be a nephtea but not sure. What are your thoughts?

[PsychoticBeauty]

It looks like either a Nepthea or a Sinularia. There's something about the polyps that separates the two I believe.