There is a monster in my tank!

[Bma1972]

Yea that one in bucket is an Euclid worm. Good catch



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[OoNickoC]

All nonsense. Nearly every single report of polychaete predation is flat out false, undocumented, and flat out finger pointing for unknown illness in tank denizens. Generally perpetuated from people who have a phobia or pre-disposition to not liking insects and creepy crawlies. The two times I have helped move an entire fish store with a large reef selection (and on multiple house moves) I have seen massive worms in excellent systems. That should be put up for sale if captured.

 

[OoNickoC]

Had one of those in my tank. That thing lived in my house for nine months before I talked my roommate into spearing it.

I know bristleworms are "harmless," but that thing was not harmless to my poor psyche. Everytime I saw the darn thing, the world went white and dizzy. Goodbye bristleworm!

Do you have pictures of it's head? That actually looks quite different from most.all of the predatory Eunice worms. In the pic of the woman holding it in the bucket, what look like needles are actually the silica spines of a large"bristle worm", when out of water they clump together looking like a single protrusion.