I live in London and I want to set up a planted tank. I really just want the plants to look healthy rather than fast growth. My tap water straight from the tap has a PH of 7.2 but once the Co2 has dissolved it raises to 8.2. My water is hard 200-300 ppm aswell. Will plants be healthy and grow a little in my hard water? Is their anyway of reducing it I have heard adding peat to the filter can help.