Is this anemone good or Pest?

[lawdawg18]

I have about 10 or so of these on some live rock I got about a week ago. I would like to make sure they are ok. I have a couple of big ones and several tiny ones. Seems like I find more everyday.
Sorry for two of the same pic.

 

[SaltwaterTeen]

Looks kinda like an aiptasia

 

[lawdawg18]

I had a few people tell me it was a Juv RBTA. I do have what I think is an apista in the tank it has much thinner tenticles and it is grey with patches of white in it. It looks nothing like what is in the pictures.

 

[Corty]

Def. not Aip.

Thought maybe RBTA, but the pictures I saw didn't have the long tentacley bits coming out of the bubble tips..

But I have no idea, just guessing :]

 

[bound_for_obx]

Try Googling either "Majano Anemone" or "Rock Anemone"
That would be my guess
Hope this helps

 

[klam]

Doesn't look like a BTA.

 

[seaham358]

I don't think its a BTA either. If you have ten of them I would say either aptasia or majano. Either way they are pests and need to be killed ASAP.