What is this one

[weallsuck]

Hello everyone. I found this thing in the tank today. Does anyone know what it is?

Thank you for the help.

 

[AlyciaMarie Verified Admin]

Weird. Have no idea, but maybe @ISpeakForTheSeas knows!

 

[sixty_reefer]

It could be a spionid worm. If it is they harmless

 

[weallsuck]

Thank you

 

[ISpeakForTheSeas]

Weird. Have no idea, but maybe @ISpeakForTheSeas knows!

Hard to say for sure from the pic, but seems to be a polychaete with two large palps, so (assuming it's not literally microscopic), I would guess either a Spionid or Chaetopterid. Unless it's boring through rocks/corals, it shouldn't be an issue:

In this case, it's probably a Chaetopterid worm - they're very similar to Spionid worms, but they tend to prefer burrowing in the sand instead of in the rocks, and they reportedly tend to have longer palps.

That said, I say probably because to make a proper ID involves removing the worm from its tube and getting pics of the body out of the tube, which just isn't feasible.

Generally, these aren't a problem unless their numbers start getting out of hand.