Coral ID

[noy]

uknowncoral by Ngai On, on Flickr

Not sure what this coral is. It was sold to me as a waving hand anthelia but the colour and the polyp shape suggests otherwise. It actually totally pale white - the cyan tinge is an artifact of the colour balance. its covers a rock and the polyps extrude out with out any obvious receptacles.

I thought maybe since its completely white it would be NPS but the way it behaves - i.e. reacting to the light (polyp only open during light) suggests otherwise. Sitting in my non-NPS display right now.

 

[rhdoug]

I had an encrusting gorgoinian (bought it as "tan star polyps") that looked very similar - except for the tan color. It was one of the most invasive corals I ever owned, and caused a total re-do of the 10 gal nano that it was in.