Hanna 1413 μS/cm (EC) Calibration Solution, 20 ml, case of 25 spl_jondon this unique formula will assist

this unique formula will assist in the highest level of crop performance during their critical blooming stage

Growcubes are difficult to overwater if the container has good drainage

Independent proportional settings for pH and TDS can be adjusted from 0 to 90 seconds

KALIX Humic Acid is a highly concentrated (57%) formulation of water soluble organic acids that are found naturally in soil matter

Roots Organics Coco Chips are 100% pure coco chips from coconut husks

Hanna 1413 μS/cm (EC) Calibration Solution, 20 ml, case of 25 spl_jondon this unique formula will assistHanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments. Comes in a bottle designed to keep air and light from damaging the solution.