What is this pink worm? good or bad?

[rorybeau]

I've had my tank for about a year but have only just seen this 'worm'. Help me please?

 

[10gal_nano]

Bristle worm. Beneficial part of yor cuc

 

[dingusplease]

Actually looks like a fireworm, hopefully someone can verify this.

Fireworms have broader bodies than your average bristleworm, but are actually still pseudocoelomates and not aceolomates.

They have a much worse sting than bristleworms, and you should probably get it out and any others you find. Can you confirm that if is more flat than round?

 

[AbsoluteFaye]

My bristle worms don't look like that...

 

[Beau_123]

+1 Bristle worm

 

[bribo12]

Bristleworm or fireworms are one in the same basically. Most organisms labeled bristle or fireworm are polychaetes with sharp bristle like setae and are harmless. There is only one harmful species and it is rarely seen. That's the Caribbean coral eating fireworm Hermodice carunculata. Your picture isn't that one, it's a harmless "bristleworm".

 

[Beau_123]

Bristleworm or fireworms are one in the same basically. Most organisms labeled bristle or fireworm are polychaetes with sharp bristle like setae and are harmless. There is only one harmful species and it is rarely seen. That's the Caribbean coral eating fireworm Hermodice carunculata. Your picture isn't that one, it's a harmless "bristleworm".

Thank you someone that gets it!

 

[bribo12]

Haha yep