Coral ID ... Type of Paly??

[jamielynnfox]

Does anyone know what coral this is?
It was a hitchhiker on a piece of rock I added.. It has gotten bigger and bigger, but hasn't multiplied. It has 2 rows of tentacles.. 1 row that sweeps up and one row that sweeps down. It super cool and pretty and loves treats. When it first started showing itself someone said get rid of it, it will take over. Its been there about 6 months.
Is it a Paly or a Button of some kind?

 

[livinlifeinBKK]

Looks like a paly but they probably thought it was a manjano anemone due to the color