What is worm

[Saieditc]

Hello
Is it worm dangerous for reef rank?
What is name??
Thanks

 

[timnem70]

Looks like a type of Bristle worm but not quite?
Who else has an answer? If a bristle worm, they are not bad but when a worm gets that size I take it out.

 

[reef lover]

Some type of ribbon worm...

 

[oceanfreak09]

Hello
Is it worm dangerous for reef rank?
What is name??
Thanks

Not a bristle worm.