Currently, i have a 60 gallon tank that is cycling, but my pH is way too high. Whenever i buy fish i acclimate them and they can't adjust to my basic and hard water. My pH is 8.5 and my kH is 9. All but the hardiest fish seem to have a huge problem with the pH. Is it possible to use battery acid (sulfuric acid?) to lower the pH of my aquarium? The LFS staff recommended to me API PH down, but its expensive and i cant afford to keep buying that stuff. I was also thinking about using peat filtration, but at my gardening center they only sell in HUGE bags (i think like 2 cubic meter bags). That is way too much and all the small quantities have miracle grow in them.