Are these Bristle worms good or bad?

[TaylorLee]

Fascinating little critters. I do understand there are a lot of species of bristle worms out there, some good and some bad. Does anyone know if this one is good? I’ve seen quite a few of them come out when the lights are out but this was the first I could get a good photo of one.
Happy reefing!

 

[EeyoreIsMySpiritAnimal]

Common, harmless bristleworm

 

[AetherealKnight]

They’re good for cleaning up leftover food.

 

[TaylorLee]

Common, harmless bristleworm

They’re good for cleaning up leftover food.

Thanks for the responses I slept good last night knowing they’re the good guys