EH Cal-Mag - 55 Gal. Fertilizer calibrate tester as either cup

calibrate tester as either cup style or dip style (depending on intended method of use)

and MGP Microbes – MAGICAL GYPSUM – to provide growers with a better growing experience from start to finish

killer & cure for powdery mildew

recirculating deep water culture

EH Cal-Mag - 55 Gal. Fertilizer calibrate tester as either cupGrow Lush, Green Plants Keep your plants productive and green in any growing medium with Cal Mag, a calcium and magnesium supplement from Emerald Harvest. Emerald Harvest Cal Mag is more than just a calcium magnesium supplement. In contrast to competing products, EH Cal Mag contains kelp extract, a natural source of nitrogen and other helpful compounds, making it different from standard products of its kind. Containing top quality ingredients, Cal Mag