Black crusty thing with antenna

[Finnjävel]

Hi.

Few time ago I got Clavularia coral which has two strange black crusty things. Looks like they have some kind of antenna. Antenna is shortest in morning and grows for evening.

EDIT: Correct coral name changed.

Are this some kind of aliens that transmit data to neighbour galaxy at the end of the day. Or are Green gloves keeping connection to friends with 6G?
Any suggestions?

They aren't moving. only antenna changes length a little.

 

[Lost in the Sauce]

I don't believe this is a Duncan. Probably not on g6 either

 

[Townes_Van_Camp]

Those are clove polyps no?

 

[Finnjävel]

Those are clove polyps no?

Sorry, my bad.. Clavularia

 

[Finnjävel]

I don't believe this is a Duncan. Probably not on g6 either

Sorry. Definitely not duncan. Duncan is its neighbour. Hand was faster than brains, again ..

 

[Lost in the Sauce]

Those are clove polyps no?

Looks like it

 

[Goaway]

Probably a worm of some form. I wouldn't worry about it. The colony they are on looks happy enough.
GL to you.

 

[Finnjävel]

Probably a worm of some form. I wouldn't worry about it. The colony they are on looks happy enough.
GL to you.

Worm colony? Are there somewhere more info about reef worms? How looks the unhappy colony?

 

[Goaway]

Worm colony? Are there somewhere more info about reef worms? How looks the unhappy colony?

You can read up on spaghetti worms, spinoid worms. I can't make out in the picture what you are talk about.
When I said colony, I was referring to the cloves. The stalks of the cloves look healthy.

In your picture I made 3 circles.
Yellow circle looks like a sponge to me.
red circle are feather dusters.
Blue circle looks like a type of algae.

 

[minus9]

Clove polyps are clavularia for those keeping score. If they have a hard shell, then you can remove them from the coral. It’s hard to tell what they are?