Goodie or Baddie

[cbraz4unc]

Goodie or Baddie? What is or? Is this some sort of Bristle worm? If so, I've never seen one this big. Like 8in. Should I remove it from my 180 gal tank? Any advice would be greatly appreciated!

 

[Vinaka_vakalevu]

can you get a photo of it in white light? looks like a large bristle worm. some people like them some take them out of the tank. generally considered a good part of your clean up crew.

if you to take it out use tongs not your hand as it can leave little hair stuck in you.

 

[TeamAquaSD]

It's one of those critters that can be considered a pest or a friend.
Some people dont like brittle starfish/serpent starfish but I think they are great detritovores.
They are not troublesome in small numbers however they can overpopulate and become a nuisance without some intervention

 

[TeamAquaSD]

also I would double that it is a bristle worm

 

[ISpeakForTheSeas]

Goodie or Baddie? What is or? Is this some sort of Bristle worm? If so, I've never seen one this big. Like 8in. Should I remove it from my 180 gal tank? Any advice would be greatly appreciated!

Does it look like a match for one of these (Pherecardia striata - this species is thought to be a cryptic complex, meaning there are thought to be multiple [in this case, at least three] species currently recognized as this one and waiting to be differentiated/described)?

Pherecardia cf striata, Marshall Islands

Invert-E-Base Portal - Pherecardia striata

Hawaii annelid worms not in my book

If so, you have a super cool invert-predator, and I'd personally try keeping it as a sump monster/in its own tank.