To ensure accurate readings, regularly calibrate your pH meter withQuality Scientific Grade HY-GEN pH Buffer 4 and HY-GEN pH Buffer7 Calibration Solutions.

This will ensure that your meter is operating withaccuracy and precision between pH 4 and 7. 

The ideal pH of a nutrientsolution ranges typically between 5 and 7. 

A pH value above or below thisrange can increase the likelihood that some nutrients become unavailableto the plant. 

Typically, a pH value of 6.3 works well for most plants.

Use both HY-GEN pH Buffer 4 and HY-GEN pH Buffer 7 to ensure accurate readings between 4 and 7.