Here in my city, we have "Toronto is considered moderately hard at 6 to 7 grains per gallon" and "Falls into the "moderately hard to hardā category" which I find quite vague. The water company isn't very helpful either, as the water is run by the city and i can't find water hardness on the website.
Upon testing my pH, I find that my water is about 7.8. This is a bit high for my fish(Betta and tetra and rasboras), and I have posted a few other threads on the subject. However, I just had an idea about using rainwater to lower the tank pH, as because the rainwater here in the city is likely acidic, it might be able to lower the tank pH. However, because it's falling from the sky through layers of smog and pollutants, I'm wondering whether it's safe to use or it's better not to. I feel that the answer is quite obviously absolutely not but I just want to ask experts.
Upon testing my pH, I find that my water is about 7.8. This is a bit high for my fish(Betta and tetra and rasboras), and I have posted a few other threads on the subject. However, I just had an idea about using rainwater to lower the tank pH, as because the rainwater here in the city is likely acidic, it might be able to lower the tank pH. However, because it's falling from the sky through layers of smog and pollutants, I'm wondering whether it's safe to use or it's better not to. I feel that the answer is quite obviously absolutely not but I just want to ask experts.