what are the white crusty objects on my glass

[reef tank 2.0]

I have a lot of white crusty things all over my back glass of the tank. They're not glass nems, or anything like that. I have scraped them off from time to time, but they come right back a week or so later. They are very small white specks. but they are only on the back glass. My first thought is that it could be calcium deposits. but I'm not sure.

I got a picture of them, hopefully you can see the details you need to see in order to diagnose.

 

[Idech]

They look like spirorbid worms.

 

[purpfish]

They look like spirorbid worms.

Agreed, I have them everywhere they will go away on their own or bumblebee snails eat them

 

[reef tank 2.0]

cool, they don't really bother me much. More of a curious question.
I have about a half dozen of BB snails, but they don't seem to mess with them. Unless they do it after lights out.

 

[Idech]

cool, they don't really bother me much. More of a curious question.
I have about a half dozen of BB snails, but they don't seem to mess with them. Unless they do it after lights out.

Nothing touches mine. I scrape them with a spatula once in a while.

 

[purpfish]

cool, they don't really bother me much. More of a curious question.
I have about a half dozen of BB snails, but they don't seem to mess with them. Unless they do it after lights out.

Yea never seen mine eat them either but then again they are really slow