New random coral growing from live rock?

[JPG Corals]

I have this new florescent green growth coming from my live rock. I suspect it's a coral? Tank is roughly 6 months old. Curious if this came from the live rock or some corals I have... I have some GSP, hammer, torch, zoas, candycane, and chalice.

Any idea what it could be? I guess time will tell.

 

[Marioc721]

Looks like a piece of hammer coral or frogspawn to me.

 

[IKD]

…or a small majano anemone