Hitch hiking anemone?

[Romulax]

I bought an anemone on a live piece of rock and a few months later, I suddenly found this guy next to the rock! Did I pick up a hitch hiking anemone from the rock?? What kind of anemone is it??

 

[bradleym]

Well you did pick up a hitchhiker, but unfortunately it's a bad one. It's called an aiptasia and you'll probably want to kill it.

 

[Tamberav]

DO you know if the live rock is from the gulf?

It kinda looks like a Light Bulb Nem.

 

[sfin52]

I don't think it's aptasia.
@eagle-steve thoughts