I am starting my new tank and I asked about a heater, but also really could use your help on water. I live in Denver and in 2020 Denver water raised their pH levels to 8.5 to 9.2. I don't want to use chemicals to lower the pH because in the past that just caused fluctuations and to me is much more dangerous than a constant pH level. What about spring water? Do any of you know a good brand with a suitable pH level?