Um... Baby snails?

These have been growing in my tank... I sure hope they are baby snails.... Good ones? I know it's a bad pic but they are very small. Anybody have an idea?

 

Pics not that great but they look like Colonista snails.

 

Hard to tell, but snails do reproduce pretty readily

 

Is that a side-on shot or a rear-end shot?

 

It's a side shot. I think there might be two of them together there though.

 

I m peppery fox' husband... that is a side shot of the shell. I googled collinista. I think that is what they are based on makings! Good cu...cool!! How big do they get?

 

They get to be just larger than a bb. Might already be full sized.