Any ID on this worm?

[RogueGrown]

It's about a 1/4" long and appears to be eating the diatoms. I have seen one in my tank before that was a bit larger just couldn't grab a camera in time.

https://youtu.be/cyB6eFzUzCs

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[Ron Reefman]

I've seen one that looks just like yours that was ID'd on here just the other day as a Peanut worm, but IMHO, that's not what it is.

 

[RogueGrown]

I've seen one that looks just like yours that was ID'd on here just the other day as a Peanut worm, but IMHO, that's not what it is.

I read that post while searching for what this guy could be. The peanut worm looks to have a smooth body where as this one has segments to its body like a caterpillar. It also looks like it has setae (I think that's what it's called) like a caterpillar or a bristle worm have.

I can't seem to find anything online that looks like this. I'm hoping it's safe to have in there, I'd hate to wake up one day and find it 18" long and have no corals left.

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[ThroThra]

can you post a photo? the video link wont work for me. I am thinking by what you have said its a eunicid worm which would be no bueno

 

[Moeshi]

Dorvilleidae sp. Very neat critter. They have gone extinct in every tank I've had, that have had a wrasse. As you can see, they don't even hide during the day and thus they are easy targets.