Aipstia?

[Haleyscales00167]

I have some rock that I got some someone selling all their stuff on Facebook. My hammer sits with them on this rock that has a ton of them without issues. There are a few others on different rocks around the tank as well. But this rock has always had this amount of them on it. As well as the other rocks in the tank that have a few here and there. My fish don’t bother it either. Is this Aiptasia? Sorry about the one pic. I’m battling algae on the glass. Lol

 

[Bryan68]

Looks like Aiptasia to me.

 

[Iamjeff6]

Yup looks like it, and a big one at that.

 

[Anirban]

Yes, thats an aiptasia.