pH & TDS

Several brands of pH Up & pH Down allow you to adjust both your water and nutrient solutions to achieve an optimal number.

We carry several models of pH meters, TDS meters and some pH/TDS combo meters ranging from $40 to $200. 

We carry calibration solution for both TDS & pH meters.

One of the most affordable, reliable and simple methods for determining your water/nutrient pH are basic test kits that include indicator solution and a color-coded chart. We also stock larger bottles of indicator solution.