With fangs like this, it can't be good

[azeli73]

Found this in my refugium this evening. Can someone ID it for me please?

 

[animatedjing]

Ewwwwww

 

[Frostyeel]

Awesome. I wish I had something as cool as that in my tank. But then again I don't have any precious fish or coral I bet he would like to munch on.

 

[azeli73]

BUMP

What is this thing?

 

[LeslieH]

It's an anterior fragment of a polychaete worm in the family Nereididae. Normally the jaws (what you called the fangs) are inverted inside the body then pushed out to capture food or for defense. Different species are carnivores, herbivores, detritvores, and omnivores. Nereids that are carnivores tend to go after other worms, small crustaceans, etc. As far as I know you don't have to worry about it feeding on corals.

 

[azeli73]

Thanks so much Leslie