frothhelmet
Member
So in the past I have tried to keep Theos in soft water, and what inevitably happened is that their shells would corrode and it seemed to me that the snails would begin to die off. As a result I upped the hardness. About a year ago however I did an experiment where I put some Theos from 10kh water into 3kh water and left them there. Initially the shell corroded like before until there was no pattern and only white left. But then a funny thing happened. They successfully bred, and their offspring now retain the pattern on their shell even in soft water, so that all my Theos in the soft water now appear as healthy as those in hard water. Therefore it appears that they can adapt to softer water if they are bred in it. So this is possible to do, but may take an acclimatization generation or so.