So I just tested my tap and aquarium water side by side which I normally do a few times a year. However these results are a little different than I remember. This time I wrote them down to confirm later. Tap= gh 53.7 ppm, kh 35.8 ppm, Ph 6.8 or 7.0 hard to tell, ammonia 0, nitrite 0, nitrate 0. Tank= gh 89.5 ppm, kh 53.7 ppm, Ph 6.8, ammonia 0 nitrite 0 nitrate 5.0 ppm. Is it common in a planted tank with no rock for the gh and kh to be higher than the tap? In this case I like the change but it seems odd?