Help identifying hitchhiker

[rnegrette]

We purchased a rock with some clove polyps on it from our LFS yesterday and noticed something else growing on it that we can't identify. It's the size of a dime (if not smaller).

 

[TX_REEF]

it looks like some type of anemone

 

[ISpeakForTheSeas]

Whatever it is, it's quite pretty.

Any pics of what it looks like with the tentacles retracted? Does it have a hard skeleton underneath? Does it move around at all?

 

[EeyoreIsMySpiritAnimal]

If you said this was a piece of ocean live rock, I'd be guessing hidden cup coral...