I'm moving to a new location that uses geothermal water. Generally, when I top off/replace water for my betta, I get my water to the correct temperature, add the stress coat + to remove chemicals, and add it in.
But I am struggling to find any information on geothermal water and chemicals I should watch out for. The cold water is your usual tap/city water.
So, I can potentially make sure it's only cold water, and let it warm up by the radiator before I add it to his tank. I'm worried about how much residue of whatever is in geothermal water will end up in the cold water. Or, I can buy pre-treated water (which would be a hassle).
Maybe I'm overthinking and my little dude will be just fine!