Ok, I should know this but apparently I was struck with the stupid stick and have yet to make a full recovery. I have a RCS tank with java moss. I got the moss from a reputable breeder and he said it was snail free. Now I have at least 500 snails running around in my fishroom so I am no stranger. I noticed an explosion of very tiny snails in the shrimp tank. They are really small, not pond, bladder or ramshorms, about 1/4th the size of a pin head. So, the question is what are they? Some have grown a little but they are still micro size for sure.
Thanks for the help.