What's on my snail?

[Rukk]

See this on a couple of my snails. Not sure what it is and consequently don't know whether it is good or bad...………

Don't see them anywhere else...

 

[JasonK84]

Vermitid snail

 

[Rukk]

Aren't Vermitid something that I don't want in the tank?

 

[S-t-r-e-t-c-h]

Meh, they're mostly harmless. A lot of people find the mucus strings that they use for feeding unsightly. I've *heard* that they can irritate corals, but have never really seen it myself...

 

[Mikedawg]

Same here, read a lot about their stinging corals but have no evidence of any resulting damage; I would probably break it off just to keep it from propagating.