EH Cal-Mag - 55 Gal. nutrient rich and eliminates the need for

and eliminates the need for external ballasts or reflectors

high-output RO filtration

providing a natural surge of potassium to boost plant vigor

promoting healthier growth

The AS-2 CO2 Alarm Station combines an audio-visual alarm module with a color-coded LED display indicator and a LCD digital ppm level reading

EH Cal-Mag - 55 Gal. nutrient rich and eliminates the need forGrow 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