Brown worm/stalk on hammer coral

[40b Starter]

Have this brown spiral “worm” growing on hammer base. I have never seen anything coming out the end of the tube. It has been there for a few weeks and doesn’t seem to be bothering the coral.
What is it ?
How and should I remove it?

 

[andiesreef]

vermetid snail. glue the end of its tube and leave it alone. the snails can be irritating to corals.

 

[Gtinnel]

vermetid snail. glue the end of its tube and leave it alone. the snails can be irritating to corals.

+1

They put out a mucous net to capture food and those can annoy corals. They also spread quickly in the tank.

 

[40b Starter]

Thank you both. I thought vermatid snails were more whitish in color. I will glue the tube end right away.

Is this another one?
Doesn’t have same spiral growth or tube shape.

 

[Gtinnel]

Thank you both. I thought vermatid snails were more whitish in color. I will glue the tube end right away.

Is this another one?
Doesn’t have same spiral growth or tube shape.

I'm not sure from the picture what it is, but it doesnt seem to be a vermetid.

 

[40b Starter]

I'm not sure from the picture what it is, but it doesnt seem to be a vermetid.

Thanks again. Hard to get an angle for a better picture. It’s nearly black in color and much flatter. I haven’t noticed it changing size since I first saw it ~2 months ago. Corals not happy but I think that was more from a GHA issue that I’ve been working to clean up.

 

[Goaway]

Have this brown spiral “worm” growing on hammer base. I have never seen anything coming out the end of the tube. It has been there for a few weeks and doesn’t seem to be bothering the coral.
What is it ?
How and should I remove it?

Take tweezers and snap it off, a small dab of super glue over the shell. It is a vermentid snail. Bot of them are vermentids. Hopefully they didn't reproduce for you.