Emerald Harvest Cal-Mag (2 - 0 - 0) Size:55 Gallon The HI98115 is a GroLine

The HI98115 is a GroLine pH tester with advanced features for the measurement of pH in hydroponic nutrient solutions

Chelated for maximum plant uptake and availability

we feel that there is no competition and no product like it

Quest 506 is the industry’s first 500 pint

easy to clean

Emerald Harvest Cal-Mag (2 - 0 - 0) Size:55 Gallon The HI98115 is a GroLineKeep your plants productive and green with Cal Mag, a calcium and magnesium supplement from Emerald Harvest. Containing top quality ingredients, Cal Mag is designed to nourish crops with extra calcium and magnesium and create the right conditions for abundant flowering and a heavy yield. This is especially important when growing in some media, such as coco coir, but any garden can benefit. Use Cal Mag as a supplement to a base nutrient series for