Worms

Saw a couple worms come out of my live rock, that I haven't seen before. I only see them if one of the hermit crabs get near a certain hole. (As you can see in the picture the crab is to the right of it) I think the worm knocked the hermit crab off the rock once already. Its probably close to 2 inches long from what I've seen, it hasn't come out all the way.

Any ideas? I've been looking around and haven't found any decent pictures of the worm that i have. It doesn't look like a fireworm which is what im hoping its not, those look wider. It does have bristles on the side of it, so its some type of bristle worm.

 

Bristle worm, good to the tank...not so good to touch

 

you'll probably have tons of those throughout the years be careful not to overfeed your tank otherwise they will overtake it

 

Hard to tell from the pic but it looks like there is tiny,pointy claws on the sides. That and the long antenna would make say it's a kind of nereid worm (which is one of many varietys of bristleworms). An excelent reef janitor and valued member of your CUC.