What is this growing off my Candy Cane Coral?

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Is this a case of aptasia too?

ever since I introduced the pink carnation into the tank is has had this ugly snappy stem but looks like is hasn't been spreading and is even coexisting quite well , to my knowledge, with the branch its beside. It would be nice to get rid of it because is definitely the ugly duckling compared to is elegant neighbor but if it doesn't do harm I guess it's not really Aptasia am i wrong?
 

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Doesn't look like aiptasia. Maybe feather duster, but to me looks like an off shoot of that coral.
 
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