Help ID my hammer!

[Slywenis]

First reef tank, I've had this coral for abt. Two weeks, not sure if it's branching or a wall.
The photo is with flash, not other light,, after I brushed up against it to get it to close up a bit to see the bottom of it.

 

[Slywenis]

First reef tank, I've had this coral for abt. Two weeks, not sure if it's branching or a wall.
The photo is with flash, not other light,, after I brushed up against it to get it to close up a bit to see the bottom of it.