? What is this?

[happyreefer]

Originally Posted by Frogger

Looks like a majano anenome. Also could be a bubble tip anenome.

Thanks for responding... I don’t think it’s a bubble as it only has one layer of tips but this thing got really large fast ( 2 1/2”). But I think my rock flower sent it packing and the next day it was on the other side of the tank half it size. Are they considered pests? It’s not much to look at...I know nothing about them. It kinda reminds me of the larvae that comes outta the egg in the ‘Aliens’ movies series...