Unknown origin

[pchromis]

Hi all,
I have had this "anemone" like coral growing for about two months now. It formed on a rock and I do not know where it came from. I never had any anemones in the tank. I have noticed a new dime sized one sprouting form another rock.
I am not too good with the picture taking and upload, but it definitley has an anemone like appearance.
Can anyone help identify it?
Thank you

 

[hurt]

Looks like the dreaded aiptasia to me. Do you have any peppermint shrimp? If not inject it with some Kalk.

 

[pchromis]

what is the bad thing about it?

 

[clown boy]

Overtakes your tank and can kill your fish.

 

[trainfever]

Go to your local fish store and get some Joes juice. That is apstaisia and it will over run your tank in no time. It is an anemone but it is a nuisance anemone. Get it out now or you will be sorry.

 

[pchromis]

Will do..Thanks all!