ID this Birdsnest... Pink? Green? Orange? lol

[pakirri]

Hello

I bought this birdsnest coral as a small colony over a year ago & its growth exploted! I thought it was Birds of Paradise at first because it was kind of green but then the grow pattern is not the same and the color is changing now to pink & green mixture..

Thanks!

 

[Frick]

Did it come from ORA. Definitely does not look like their BoP.
http://www.orafarm.com/products/hardcoral/seriatopora/bird-of-paradise/

I would say it looks like a Seriatopora hystrix with purple polyps.
http://coral.aims.gov.au/speciesPages/species_metadata/0342/view#