Can anyone Identify These?

[razpufteef]

I noticed within the last day or so i have these swirl like organisms growing on the glass of my tank. Any idea what they could be?
I attached a picture, hopefully it shows.

 

[tizzo]

They are called spirorbidae worms if they look like these up close...Anyway they are safe and beneficial.

 

[renogaw]

no clue what they are, but i thought i read somewhere that snails lay eggs in circular/spiral shapes too.
what are those black things in your tank, muscles?

 

[colourmop]

sadly, mag-float>poor spirorbidae worms

 

[razpufteef]

Originally Posted by Tizzo
They are called spirorbidae worms if they look like these up close...Anyway they are safe and beneficial.
That's what they look like Tizzo, thanks for the picture and info

. I'm going to do some reasearch and figure out why they are benificial.