OK, so it's water test day... Wondering what you all make of these numbers (keep in mind we did all tests twice, just to be sure). My biggest issue is Alkalinity. We're going to retest today after we recalibrate our KH Director to see if it ends up closer to our Hanna tester. Which ones do we trust? Which tests should we throw in the garbage? Thanks in advance for the input. Also, going to send out for ICP tests today as well to get more detailed info.
Alkalinity
KH Director (we're going to recalibrate today.. Just set it up yesterday) : 7.2 dKH
Hanna : 8.5 dKH
Red Sea : 11.2 dKH
Phosphate
Hanna : 0.86 ppm
Nitrate
API : 0 ppm
Salifert : 10ppm
Calcium
Hanna : 480ppm
Red Sea : 525
Magnesium
Red Sea : 1,500ppm
Nitrite
API : 0 ppm
Temperature
Profilux Probe : 78.6
pH
Profilux Probe : 8.18
Cheap Amazon pH pen : 8.49
Redox
Profilux Probe : 337
Salinity
Profilux Probe : 1.0247
Hanna : 1.026
Alkalinity
KH Director (we're going to recalibrate today.. Just set it up yesterday) : 7.2 dKH
Hanna : 8.5 dKH
Red Sea : 11.2 dKH
Phosphate
Hanna : 0.86 ppm
Nitrate
API : 0 ppm
Salifert : 10ppm
Calcium
Hanna : 480ppm
Red Sea : 525
Magnesium
Red Sea : 1,500ppm
Nitrite
API : 0 ppm
Temperature
Profilux Probe : 78.6
pH
Profilux Probe : 8.18
Cheap Amazon pH pen : 8.49
Redox
Profilux Probe : 337
Salinity
Profilux Probe : 1.0247
Hanna : 1.026