I'd this acro

[karsseboom]

Bad pic but it's the best I could get with radiums

 

[Frick]

Looks like the starts of a nice blue Formosa http://sdmas.com/corals/29.php

If you can adjust your white balance on your camera that helps with the Radium lights.

 

[karsseboom]

heres a close up pic...

 

[Frick]

The coralites are weird. It looks like they are changing as it grows out.

 

[karsseboom]

Yeah that's why I don't understand if it's a stag or maybe even a tort?

 

[Frick]

It looks as if it sat in some low flow and got to a better spot and the tips that are growing out resemble a tort. It's a stag type for sure, but what species?