Calcium Soluble Size:7 lbs Choose a substantial pot (at

Choose a substantial pot (at least 20 gallons) with excellent drainage

Does not include the 20L collection base

and 5x5 grow tents to support supplemental lighting

and providing reliable erosion control

Made from high-quality

Calcium Soluble Size:7 lbs Choose a substantial pot (atThis item ships separately directly from our supplier partner and will arrive independently from other items in your order. Calcium Soluble from The Soil Makers is a premium, 100% pulverized limestone calcium carbonate powder designed to lift calcium levels in hydroponic and soil systemswithout adding magnesium. 38%; 95%; very low, making it ideal when soils are already high in magnesium; 97. 0% passing at 100 mesh and 85% passing at 200 mesh,