GH Hardwater Flora Micro Gallon pH |EC| TDS Meter and Solutions 4x8 Tray: 54

4x8 Tray:  54

HPK is minimally processed to preserve all of the benefits and synergistic qualities found in our ingredients

Super Boost® uses high quality ingredients critical to plants in the late stages of the growth cycle

Compatible with Air Force Pro® 40

Chinese patents: ZL201330634881

GH Hardwater Flora Micro Gallon pH |EC| TDS Meter and Solutions 4x8 Tray: 54If your tap water is over 200 ppm (or contains Calcium above 70 ppm), use Flora Micro Hardwater. If your water contains 30 to 50 ppm Calcium, you can mix our original Flora Micro with Flora Micro Hardwater to create a perfect Micro blend for your plants.