Creepy worm ID?

[NanoJHB]

Was watching the tank and saw what looked like a serpent star leg... watched it for a bit then this thing came out. No idea what it is and want to know if I need to try catch it.

 

[NanoJHB]

A couple friends in the hobby have suggested eunicid worm but it doesnt look to have those "jaws"

 

[JoJosReef]

That's a creepy one. Hard to tell what I'm looking at in the photos. I see a bristly brown worm, but is that long white strand an antenna? For a Eunicid, count the antennae; there should be 5 in a straight, forward pointing fashion. Four antennae curving backward = good bet it's a Dorvilleidae (ok, just creepy). For a Eunicid, those jaws can stay retracted, and they can be less pronounced for some of the many many species of Eunice, so I'd focus on the antennae. Another useful tell is a white band right behind the head. Post some more pics if you get a chance!

 

[KonradTO]

That is d""mn cool! Did it came with LR?

 

[blaxsun]

It's got freakin' tails - that's wild!

 

[NanoJHB]

Best I'm going to be able to do with a pic

 

[NanoJHB]

That is d""mn cool! Did it came with LR?

No idea. Tank has been running for just over a year and had a few small pieces of LR from an LFS when I started. First time I've seen it

 

[monkeyCmonkeyDo]

Bobbit worm?
D

 

[monkeyCmonkeyDo]

Remove if possible
D

 

[NanoJHB]

How would I catch the thing? Bristle worm trap?

 

[KonradTO]

I am a noob in reefing here, so take my words with caution. But if you had that worm for a long time in the tank without problems I would say it is scavenging stuff. Unless it grows bigger and gets a taste for fish I would keep it in there, it's unusual and amazing and adds diversity and value to your small ecosystem.
It's all about how much you like it and whether you are ok with taking a small risk for keeping it in your tank (I kept everything I found until now aside from aiptasia)

 

[JoJosReef]

That one long antenna is throwing me off, but I vote Eunice. Like above poster says, many are primarily detritivores, but they can still grow large and be opportunistic, so I'd try to remove it. I'm in the middle of constructing a trap for my Eunicids-- 1" pvc connector with pvc ends, drilling holes, airline tube out of holes, and piece of krill inside wrapped in women's panty hose (to tangle their bristles and prevent them from backing out).

 

[NanoJHB]

That one long antenna is throwing me off, but I vote Eunice. Like above poster says, many are primarily detritivores, but they can still grow large and be opportunistic, so I'd try to remove it. I'm in the middle of constructing a trap for my Eunicids-- 1" pvc connector with pvc ends, drilling holes, airline tube out of holes, and piece of krill inside wrapped in women's panty hose (to tangle their bristles and prevent them from backing out).

Thanks for the advice!