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At Advanced Nutrients
When you select the width and length of your system at the top
even coverage over a 3' x 5' growing area
By maximizing the concentration of dissolved oxygen
With extra perlite and low-salt coconut coir
Emerald Harvest Cal-Mag 55 Gallon Container Size:15 Gallon At Advanced NutrientsEmerald Harvest Cal Mag keeps your plants productive and green in any growing medium with our top quality calcium magnesium supplement. Keep 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 by utilizing its 2 0 0 NPK.
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