Unresolved White Spots on Glass

A few days ago I noticed these white spots on the back of my tank. Since they were not moving I figured they weren't a problem. However, in about 48 hours I went from about 10 to 40. They are stuck to the glass and one of my powerheads. They seem soft yet hard. I don't think they are a type of spiral worm.

 

Hard to tell, because they are so tiny. Probably not a problem just watch everything closely. I would have said microdusters except you said they have give to them.

 

What type of species of snails do you have?

 

The snails I have are astrea, nassarius, bumble bee, turbo, black margaritas, cerith, and nerite snails. I also have some of those slug like snails. They have a half shell. Kinda look like a moving booger. A lot come on frags.

I would say the largest ones are the size of a pin head. To me this rules out ich.

 

If you look real close you'll see that they are just tiny tube worms with a calcifyed tube. I have them all over my glass and rock as well. They'll pop right off the glass if they're bothering you. hope this helps.

 

Nerite snail eggs probably.

EDIT: LOOK AT THE SECOND PICTURE DOWN http://www.advancedaquarist.com/issues/sept2003/invert.htm

Stomatella snails. Quite nice to get these as a hitchhiker.

 

That would be them. Your awesome. K+ for all those that helps and double for inwall.