Emerald Harvest Cal-Mag 2 Quart/1.9 Liter (6/Cs) we recommend the DEH 3000R

we recommend the DEH 3000R Wall Mounted Unit #700833

Easy-to-use digital display humidity readings

the amount of food available (ppm) and the solution temperature

an invigorating plant tonic from Emerald Harvest®

phosphorus and potassium throughout the crop life cycle

Emerald Harvest Cal-Mag 2 Quart/1.9 Liter (6/Cs) we recommend the DEH 3000RKeep 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