What is this?

[Dr. Peter Venkman]

I was in Europe for several weeks and just got home and noticed this on my glass. Any ideas?

 

[\m/reefsnmetal\m/]

Looks like diatoms to me. They'll build up on the glass over time if you're not there to scrape it off.

 

[SaltCreepReef]

Looks like a spaghetti worm, harmless member of the clean up crew. They are typically buried in the sand and just put all their little stringers out across the surface of the sand, but I have seen them on the glass and rockwork as well. its mostly closed up in the pick, it has hundreds of those thin noodle like arms, hence the name.

 

[exnisstech]

Yep spaghetti worm friend. Normally they stay under rocks or in sand and extend their fibers (?) to feed. This one must ne hungry, I rarely see them on the glass

 

[Dr. Peter Venkman]

Looks like a spaghetti worm, harmless member of the clean up crew. They are typically buried in the sand and just put all their little stringers out across the surface of the sand, but I have seen them on the glass and rockwork as well. its mostly closed up in the pick, it has hundreds of those thin noodle like arms, hence the name.

Thanks for the reply. Do I have to worry about the population blowing up?

 

[exnisstech]

Thanks for the reply. Do I have to worry about the population blowing up?

I think they tend to self regulate population by amount of food available. My tanks are full of them but I never see them unless I move rocks.

 

[EeyoreIsMySpiritAnimal]

Thanks for the reply. Do I have to worry about the population blowing up?

It's a hair worm epitoke. The population will wax and wane depending on how much you (over) feed, what other detritus eaters you have, etc.