Okay, so my sister has a Walmart bought CT and his fins were rather ratty and curled (I'm assuming because of our Texas water hardness, and age more than likely.) We're now using distilled water by the gallon, and it seems to be helping a bit. Does anyone else use distilled water? Is it better than tap for their fins?
Wondering because I'm thinking about purchasing a nice CT from AB, but I don't want to risk ruining his fins with our water. If I just use purely distilled, would that prevent curling?