Does Water Hardness impact the growth of Snails?
Most snails do best in harder/alkaline water. If the hardness/ph drops below a certain point, their shells will start to dissolve and/or grow improperly (the behavior seems to be based on species). Malaysian trumpet snails seem the hardiest, showing little adverse effect from soft water. The Ramshorn snails shell will start to dissolve, and gaps will form in the new shell growth. Mystery snails will form gaps. Most of these problems can be corrected by hardening the water, and the snails will recover, although exterior shell damage (from dissolving) will remain.
