Thanks klongo and pacopetty... And yes, that's the 175 just finishing the cycle process.
I have to admit, my LFS recommended Seachem Calcium Builder and Seachem Ph to 8.4 but mine always seems to test low with my kits. I may have a bad kit but it seems to be low after every test.
The results, however, as you see, I can't deny those... Plus, yesterday, I saw that one of my pepermint shrimp had molted...
I can only believe the the Seachem is doing it's thing and the tank is absorbing the excess.... I'll stick with Seachem as long as I get good results.