What's growing on my frogspawn stem?

[idcgfy]

Not sure if these are tube worms or not, but they are hard and brittle to touch.

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[chet-tonja]

Looks like tube worms to me as well

 

[idcgfy]

Looks like tube worms to me as well

They are vermitid snails. Not harmful, but ugly


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[Fylerb]

Defiantly vermited snails will spread to plague status. Can try to dip and super glue shut

 

[ttkreef]

I have a lot of them in my tank now vermited snails. they put their web all over the place. How could I dip them. What should I use and should I dip the whole rock with coral?

 

[BeachVacationer]

I have had success by making sure my water is clean, low nutrients and physically prying them off in a bucket of tank water when I do WC.

 

[AlSimmons]

Being that the coral isn't attached to anything you might want to put it in a small bucket of salt water and see if you can pop some of those shells off with a small knife or razor blade.

 

[dtapke]

I use a pair of tweezers and just smash the crap out of em. kind of satisfying...

they're super annoying as they'll actually block coral growth it seems.

 

[LPS_Blasto]

They will grow right up through any coral in their way.

Nasty little pests that can overtake a tank quickly. VERY difficult to get rid of. Most people try to starve them out.
Theres some guys having luck with eradication on a different reefing forum.