Is this aiptasia?

[Danthefishman]

Hi guys. I found a few of these little white anemone things on my live rock that I've have for about 3 months. They retract. Is this aiptasia? it's at the bottom of the rock, and the last picture is a top view. Thank you for the help.

 

[JGT]

Looks to be the dreaded A.

 

[Danthefishman]

Looks to be the dreaded A.

dang, I'm probably just gonna throw the rocks away.