For reals. Just tested and am sitting at 7.0 today. I think I'll bump up another 50ml kalk (450/day) to see how things level out. Pretty cool to see real effects on uptake rates with the increased pH. I tested with my hanna ph tester, it read 8.8, which i highly doubt to be accurate, need to order a titration kit for back up. And some calibration sachets.
Other stuff i tested:
Cal 400ppm
Po4 .25ppm
No3 8ppm
all these good tanks have higher than normal PO4 numbers….




