What is this thing?

[Brian Baker]

Not quite sure. Haven't added anything to the tank recently so maybe it has been in there the whole time.

Noticed it was trying to eat my dead crab!

 

[DSC reef]

Bristle worm, good clean up crew and doing his job.

 

[kirstyflash]

^agree, good cuc. Just beware...don’t pick up without gloves. You will regret it. Their bristles get stuck in your skin and it feels like fibreglass

 

[GoPitt88]

Yep...bristle worm [emoji106][emoji16]