E.B. Stone Sul-Po-Mag Size:5lbs RAW Humic acid is a

RAW Humic acid is a natural chelator and is a beneficial supplement to all feeding schedules

A concentrated formula that provides abundant nutrients for rapidly developing flowering sites

It is designed to increase response time and maximize the life of Bluelab pH pens and pH probes

Compatibility: Safe for use in all grow systems

RAW B-Vitamin is most beneficial during transplant

E.B. Stone Sul-Po-Mag Size:5lbs RAW Humic acid is aE. B. Stone Naturals Sul Po Mag is a naturally occurring crystalline material known as langbeinite. It is an excellent source of readily available Sulfur, Potassium and Magnesium. Potassium encourages root growth and increases plant resistance to disease. Magnesium aids in the green coloring of plants. Sulfur aids in the use of nitrogen fertilizer by the plant and helps lower a soils pH. NPK: 0 0 20 Derived from: Sulfate of Potash Magnesia.