ID This Please

[justinl]

well it certainly is a polychaete, but whether or not it was harmful (since it got the boot) is questionable. i doubt it was and im willing to bet that it wasnt the only one in your tank too.

when you say "moving around" do yuo mean along the ground or in the water column? it looks like it might be in one of its reproductive stages called an epitoke... or it might just be a species that always looks that way. shrug.