White spots on glass?

[asc900]

Hi guys. I'm Akari trying to figure out what these white spots are. They are only on rocks and invertebrates shells. Thanks.

 

[TrottingReef]

Hi guys. I'm Akari trying to figure out what these white spots are. They are only on rocks and invertebrates shells. Thanks.

This looks exactly like what I am getting now. I have them all over the glass rocks and even on the shells of snails and hermies. @asc900 what did they turn out to be for you?

 

[blkcoral]

Thread is kind of old but any solutions on how to remove the white dots? It is pretty tough/tiresome to manually remove. Thanks.