Bristleworm in tank

It seems that I have a tan/brown bristleworm in my reef tank. It stays near the bottom and never comes out fully from under a rock. Doesn't bother anything as I can see so should I leave it alone? Some are beneficial. Any opinions? I read about traps and such not sure I want to bother as it keeps to itself and stays under the same rock. Thanks, Wayne

 

If it's too large, it may wreak a little havoc. The best way to see it in action is observe it when the moonlights are on. It's a night crawler.

 

They are beneficial also as long as they don't take over your tank.
You don't need to target feed hermit crabs etc. which offers Bristleworms alot of food for them to grow and reproduce, as some people have done in the past. I would leave it in your tank. It's like having ants, they are beneficial to an extent, but when there are to many they become a problem.

 

I have seen one in my tank before... like over 3 months ago... I have read that they can take out anemone which worries me cause I have a BTA. I like to fix things the natural way... So what will eat a bristle worm?

 

There's a wrasse that will eat the worm, a pseudo-bicolor although so far mine hasn't and coral banded shrimp and arrow crabs have been known to attack bristle worms... The coral shrimp and arrow crab are mortal enemies - I know from experience!

 

Thanks for the info!
I have 2 six line wrasse.... I wonder if they eat'um...
I'm gonna have to pick up some arrow crabs... can't get any kind of shrimp unless it's big... I have a big cleaner shrimp now and he already killed 2 other cleaners and 2 scarlets

 

I have a some bristle worms...in my opinion they r great! They are just another hungry critter that, just in case you over feed, will eat... THIS ONLY applies to reef safe buggers, if they are the bearded kind then get them outa there

 

I can back up waynes advice on the CB Shrimp. I have seen it with my own two eyes, they eat them like noodles.

 

Id get that invader worm outta there asap, Its just a matter of time and your gonna see it eatin corals. I speak from exp. Why risk your coral over something you didnt spend your hard earned money on!!!!!

 

The worm I have is beneficial so I won't panic at this time

I really don't think the sky is falling at this point !