Hitchhiker ID, please

[DonB]

I have a few of these on the front glass, terebellids, I think. Are they harmful? They are in a simple tank with soft corals, small fish, snails, crabs, etc. Amazing that I got an iPhone to focus on them!

 

[Ranjib]

looks like some kinda pod (harmless), but not sure. Clown should eat them if they are pods. Could be something harmful as well.. but less chances I think

 

[DonB]

Neither the clownfish or the 6-line wrasse touch them.

 

[Ricksreeefs]

possibly spaghetti worms?

 

[Ranjib]

possibly spaghetti worms?

yeah +1. High chance of spaghetti worm,