I’m rescaping my tank in a couple months but I need to come up with ideas now. I wanted fake driftwood, so I didn’t get any tannins, but I decided it might be better to go with real. I was planning to go with spider wood, as it doesn’t release as many tannins as other wood and I like the look more. But how much would it lower my pH? pH is around 7.5, KH is around 8, and GH is around 25.