Unknown Acro Please Help

[Devin98]

Any idea what it may be, the body is fairly white, green/yellow polyps and purple growth tips.

Sorry about the back picture its about 20" deep in the tank.

 

[Frick]

It's hard to make out the coralites or tips.
Here are a few of my guesses;
Subulata http://sdmas.com/corals/73.php
Tenius http://sdmas.com/corals/74.php
Selago http://sdmas.com/corals/63.php