EH Cal-Mag - 270 Gal. 9 CFM Use in seed starting mixes

Use in seed starting mixes as an alternative to vermiculite and perlite

millipedes

When the highest accuracy is required - even at very low temperatures and under changing environmental conditions

restoring the glass to its original clarity

EH Cal-Mag - 270 Gal. 9 CFM Use in seed starting mixesGrow 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