Tiny white swirls on glass

[Saltlife757]

Hey all, I need help identifying something I have growing on the side of my tank glass and over flow box. I'd take a picture but even zoomed in they are just tiny white specs.

So The specs almost look to have a swirl shape and can be scrapped off the glass pretty easily.
It's definitely hard and comes off in one piece and sinks to the bottom if I scrap it. I was trying to look I up and I think I've narrowed it downed to baby snails or a type of worm? Can anyone help me identify it? Is it a bad thing or something I should be worried about?

 

[thegrun]

Sounds like spirorbid worms, if you Google them a picture will come up.

 

[Sugar Magnolia]

Yep, harmless spirorbid worms would be my guess as well.

 

[vhuang168]

Or Vermidtid snails if there is a upturn at the end


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