Super Coarse Perlite water-filtration Many of these essential micronutrients

Many of these essential micronutrients and minerals may not be present in your current nutrient program

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and enhancement of the microbial population in the growing medium

Super Coarse Perlite water-filtration Many of these essential micronutrientsPerlite is a unique volcanic mineral which expands from four to twenty times its original volume when it is heated. Perlite can reach temperatures of approximately 1600 1700 degrees F. The media's expansion is due to the presence of two to six percent combined water in the crude perlite rock, which causes the perlite to pop in a manner similar to that of popcorn. When expanded, each granular, snow white particle of perlite is sterile with a neutral pH