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Magnesium sulfate
Twister T2 leaf collector top filter bags allow maximum airflow for extended periods while keeping airborn debris to an absolute minimum
Automatic one or two point calibration
Safe for use with live plants
Roots Organics HPK - 1 GAL / 4 L - Case of 4 Grow System/ Trays/ Reservoirs Magnesium sulfateRoots Organics HPK liquid bloom booster features a combination of seabird guano and phosphate rock, renowned as unparalleled reserves of available phosphorus, combined with langbeinite, a powerful source of potassium and magnesium that is carefully mined from ancient sea beds in the desert of the American Southwest. Aurora Innovations has taken generations of gardening experience and distilled it into a distinctive, easy to use formula for the home
