Tiny thing(s) extending from hermit shell?

[beyer]

Hey guys, I've noticed something from a couple of my hermit crab shells. I would compare its size to that of an inch long piece of thread. When I noticed it the first time I tried to touch it with a poker and it retracted back into a tiny hole on the outside of the shell. My common sense is telling me it's a tiny critter and could be part of the reason some of my zoa frags are closed up due to the crabs getting near the zoas.

If anyone has a clue what this might be, please enlighten me! Thanks!

 

[mgoesma]

Vermetid Snail? Do you have a photo?

 

[beyer]

Vermetid Snail? Do you have a photo?

I'll try to post one today sometime

 

[Water Dog]

I'd put my money on Vermatid snails too. If they are in fact Vermatid snails, take a pair of tweezers and crush them at the base. Given the right conditions, their population can explode and they can become quite the pest.

 

[beyer]

I'd put my money on Vermatid snails too. If they are in fact Vermatid snails, take a pair of tweezers and crush them at the base. Given the right conditions, their population can explode and they can become quite the pest.

Vermetid Snail? Do you have a photo?

Here are some pics. I had a vermatid snail at the base of my frogspawn a month or so ago but these seem different to me. They almost seem as hair algae at first but watching them closely it looks as if they seek out nearby things and move/reach similar to a type of tiny worm or something.

It appears to be two of them

 

[Water Dog]

Those don't look like Vermatids on your snail. At first glance, it looks like some sort of filamentous algae. That fact the they seem to move and try to grab things unfortunately leaves me at a loss.

 

[trevormass7]

I've had these on shells also but never knew what it was

 

[Oleshp]

That looks like spionid worm feelers. I have one growing within a zoa colony. From what I understand they are nothing to worry about. However, I'm no expert.

 

[Shon]

Looks like a chaetopterid. You can kinda make it out on my brother's "hermit crab" and about every else on sand and rock work. If it is a chaetopterid, it will pull sand in the same way it pulls food and build a tube with it.

I've always called them twin hair worms.

 

[kashman100]

Looks like feather dusters. I have a snail with some on it.

 

[Shon]

Better photo of a "twin hair worm"