My tap water has me wondering what to do. GH is 300+ppm (17+ dgh), but my kh is 80 ppm (4.5 dgh) and ph 6.7. I keep angels, electric blue acara, and various corydoras right now. I don't like the super high GH, but also feel like I should be buffering my kh since its a little low and so is my PH. Any bright ideas? I have a fish room and I am an aspiring breeder and I think my water parameters are causing trouble with spawning and fry survival.