What is this little creature?

[unboundmind]

this invertebrate i'm thinking but don't know has appeared in my thriving aquarium and i can't find a pic of it. it has the tube and then lots of brown hair like threads around it. i've attached a pic of it. thanks.

 

[BL1]

No pic attached

 

[Toolman]

brittle star?

 

[unboundmind]

i don't know do they have tubes like that and stationary, i don't think it moves

 

[yote]

Vermitid snail.

 

[unboundmind]

glad i only have one of them, although it sounds like they are a creature of the sea and in a small number relatively benign, this one is located where i can extract it pretty easy. thanks

 

[yote]

It wont really hurt anything.But the webs it can produce,can irritate nearby corals.
If it starts that,just a glob of superglue gel over the top of its tube.