Gorgonian ID?

[Dach]

I picked up this purple polyp white body gorgonian from an LFS last week and was wondering if someone can ID. I was told it was photosynthetic. 

[M. Tournesol]

I am not a specialist on gorgonian but I know that generally, brown polyp = photosynthetic.

[billygoat]

This is a silver bush gorgonian (Muricea laxa). It is photosynthetic, and enjoys strong flow and abundant light. Periodic feeding will encourage growth.