mommyeireanne

Good points, but shopping in a LFS, it's unlikely they'd have interdicted species. True, all fish and plant keepers should know not to release stuff. I bet if you did find Anentome helena, that it would be advertised for it's other-snail-eating benefit to people who want that, and more expensive. The Tylomelania patriarchalis, or Sulawesi snails are somewhat bigger than MTS and beautiful. I doubt they'd be cheap either. I can see the differences in these three (shell colors, patterns and texture, spotted body of the tower snails, the way the helena shell sits on it's back, etc.), and I'm sure I've never seen the other two in a fish store. I stick by my original statement. If you see them in the LFS, probably MTS.

p3purr

I've never seen a store charge for MTS or pond snails, never seen one turn down anyone who asked to have some. Although some hobbyists try to sell them...