Not got a clue!! Hopefully not aptasia.

[Gavin Noy]

Hi all. Just seen this and cant find anything that looks similar. Has a deep pink body/mouth and tentacles with balls on the end. Bets photos i can get are attached.

 

[Troylee]

Ball nem they don’t bother anything or spread.

 

[ISpeakForTheSeas]

"Ball Anemone" - actually a corallimorph; it's a relative of soft mushroom corals - they're generally not a problem.

 

[Gavin Noy]

Generally….. Upon further investigation i have found 3!!! I have no idea where they came from.