ID help please

[Pudgeshambley]

I am hoping this is not a vermited snail. Possibly spirorbis. Sorry I am new to this and tried looking up similar images but couldn't figure it out. I did remove a vermited snail from a frag plug recently. Thanks

 

[ISpeakForTheSeas]

Looks like a spirorbid worm to me - generally considered harmless filter feeders.

 

[Pudgeshambley]

Looks like a spirorbid worm to me - generally considered harmless filter feeders.

Thank you. Do vermited snails look darker? And do they start out with hard shells?

 

[Pudgeshambley]

Looks like a spirorbid worm to me - generally considered harmless filter feeders.

Do they show up on frag plugs? Trying to figure out how I got them

 

[ISpeakForTheSeas]

Generally speaking, vermetid snail tubes are not white (though some species have white tubes) and they have a long part of the tube sticking out away from the substrate it's growing on (i.e. it's a little spiral with a long, cylinder tube jutting out perpendicularly from it - again, though, not all of them have long tubes; all of the species I'm aware of do, however, have an opening that turns out away from/perpendicular to the substrate and spiral tube - spirorbid worm tubes, on the other hand, generally open parallel to the substrate). Vermetids do have hard (read: calcified) tubes - I'm not currently aware of any species that do not.

Spirorbid worms can come in on frag plugs, live rock, sometimes hermit crabs or snail shells, etc.

 

[Pudgeshambley]

Generally speaking, vermetid snail tubes are not white (though some species have white tubes) and they have a long part of the tube sticking out away from the substrate it's growing on (i.e. it's a little spiral with a long, cylinder tube jutting out perpendicularly from it - again, though, not all of them have long tubes; all of the species I'm aware of do, however, have an opening that turns out away from/perpendicular to the substrate and spiral tube - spirorbid worm tubes, on the other hand, generally open parallel to the substrate). Vermetids do have hard (read: calcified) tubes - I'm not currently aware of any species that do not.

Spirorbid worms can come in on frag plugs, live rock, sometimes hermit crabs or snail shells, etc.

Thank you for the response