Can Someone Help ID?

[jab47303]

Hello:
I've noticed quite a few small white creatures growing on the sides and back (where I don't scrape) of my tank. I have attached a picture I took this morning.
The little things are 1 - 2mm in size.
Any ideas? Are they good or bad?
Thanks,
John Burns

 

[shanev]

Looks like spirorbidae to me. A harmless filter feeder. Usually means things are doing well..

 

[shanev]

Oh and Welcome to SWF.com

 

[bang guy]

Welcome!!!
That's a great picture, you must have one heck of a camera.
I agree with the diagnosis of spirorbidae Worms.

 

[jab47303]

Thanks all - I did a little research real quick - are these actually a type of fan worm?
The camera is just an old Kodak that was retired where I work and I took it to nice home to live out the rest of it's years. It does have pretty good optics though.
Thanks again,
John Burns

 

[125intx]

I have a ton of those things, I have been trying to take a picture of them but my camera is junk. I am glad I finaly got an ID for them, they are real hard. And kinda cool.