Lightweight Pumice Concrete Sand Aggregate Concrete Sand+:45 lbs. (full-sized production bag) Typically used for: soilless grow

Typically used for: soilless grow media

Pumice Gives Compost an Enduring Structural Element

Ponics Stone Granular is ideal for root cuttings and other propagation uses

grippy edges of the stone also work to bind it into the soil matrix

Lightweight Pumice Concrete Sand Aggregate Concrete Sand+:45 lbs. (full-sized production bag) Typically used for: soilless growLightweight Concrete Sand+ Lightweight pumice sand + tiny 1 8 inch stones. Use in lighweight mortars and as an additive to the lightweight craft aggregate when more sand content is desired. About Pumice: Pumice is literally a foamed stone, formed in the awesome heat and violence of a volcano. Pumice stonesincluding the sandare riven with nooks and crannies and air pockets that provide the lightweight character and insulative quality..