What is growing on my candy cane?

[Cyborg_Vole]

I have noticed a small tube growing on my candy cane, since I've noticed it I can also see that the candy cane isn't quite as "happy" as it was before. Any ideas on what it could be?
Pics below:

I did recently spot feed some reef roids which is what is being dragged towards the tube.

 

[blaxsun]

Feather duster maybe?

 

[JGT]

Vermetid. Scrape it off or crush it with needle nose pliers at the base.

 

[Cyborg_Vole]

Vermetid. Scrape it off or crush it with needle nose pliers at the base.

Thank you, I'll get rid of it now

 

[Turkey head]

Yeah, they can annoy corals. Make sure the base is crushed because the snail an retract into the base and breaking off the stem won’t kill it.

 

[littlefoxx]

I have noticed a small tube growing on my candy cane, since I've noticed it I can also see that the candy cane isn't quite as "happy" as it was before. Any ideas on what it could be?
Pics below:

I did recently spot feed some reef roids which is what is being dragged towards the tube.

Those are those pyramid snails. Bad!