For the past several weeks my tanks water parameters have been giving some peculiar results. My pH has remained at a value of 7.6, even though I've been adding "pH adjust" every two days; supposedly lowering the pH by 0.5 per application. Furthermore, yesterday I did a 30% water change and introduced water with a pH of 6.8; however, this morning my pH was back to 7.6. To add to the confusion, my KH reading is 50 mg/L, a value usually associated with a low pH. Should I focus on my KH, since it is rather low and I've heard that pH isn't as crucial as other things, such as temperature. However, if I increase my KH, won't my pH also increase? So, what's going on in my tank? Should I increase my KH or decrease my pH or do both? Jason S.