Well here are perimeters again
My unmixed ro water all read zero even nitrates so not faulty or out dated kit...
For saltwater in tank(not in mixing bucket)
Ph 7.8
Ammonia 0.25 ppm (shocked cause been zero for weeks now)
Nitrite 0ppm
Nitrate
40-80ppm
Phosphate 0.5ppm
Temp 78-79 degrees
Sality1.026-.027