I haven't checked yet this week but last week they were ph 7.98 Ammonia 0 Nitrite 0 Calcium 360 Magnesium 1075 Salinity 1.025 KH 8. I forgot to test nitrates apparently. My Mag and calcium and ph dropped significantly within a week. The week b4 was ph 8.16 calcium 410 mag 1250. I have been dosing mag and calcium slowly this week to get it back up. Gonna check it today and do a water change didn't get the chance yesterday. To answer your ? from my other thread, yungreefer2410, the bioballs have never been used.