What's this under my brain??

[PlayaDelReefer]

Found this guy this morning under my brain. Does not look like aiptasia. Blue-ish in color. Anything to be worried about?

 

[aromano]

looks like some sort of feather duster in first pic

 

[Reefiez]

^ Feather duster!

 

[WLachnit]

^ feather duster!

+1