Red and Blue Bristle Worm?

[TheMoose]

I found this one and another in some rock work this morning. Hoping they are fairly harmless.

 

[homer1475]

Typical bristle worm and nothing to fear.

 

[DSC reef]

Agree^^ common bristle worm

 

[ChronicReefH2o]

I personally do not like bristle worms as they irritate corals, many people consider them as another part of a clean up crew. My 2 cent, they multiply fast and I would rid of them if they are removable.

 

[homer1475]

They only multiply fast if you overfeed. They self regulate their population based on available food.