Bristle worm? Good / bad?

[sam9823]

I noticed these worms in the tank tonight not sure if they are good or bad but they are tunnelling in our rocks and we had a dead rock of zoas!!? If bad how can you get rid of them

 

[IKD]

Common bristleworm. Good cleanup crew but don’t touch them with bare hands

 

[Mr. Mojo Rising]

There are probably hundreds, if not thousands, in your tank. They are harmless clean up crew. They have nothing to do with the dead zoa's, the zoa's died for other reason.

 

[sam9823]

There are probably hundreds, if not thousands, in your tank. They are harmless clean up crew. They have nothing to do with the dead zoa's, the zoa's died for other reason.

Ok wonderful that is good to know, we are currently battling cyano in the tank as well so I feel this may have been the cause, thank you!

 

[Seansea]

The bristleworms no sweat. If they get out of control get a wrasse like a melanerus and it will control them.

But i think you have a vermitid snail in the top picture. They will definatly irritate your corals.