Roots Organics HPK 0-5-4 Size:1 gal and with their 2000° Kelvin

and with their 2000° Kelvin color temperature they consistently provide intense light in the correct spectral range for vigorous flowering growth and can even be used

Accurate color correction under LED lights

Adding crab shell to an existing production program increases nutrient uptake and root development

BPA free—safe for aquaponic use

Soil Mixes: Add 20-30% rice hulls to soil mix

Roots Organics HPK 0-5-4 Size:1 gal and with their 2000° KelvinRoots Organics HPK 0 5 4 Product Details Roots Organics HPK liquid bloom booster features a combination of seabird guano, an unparalleled source of available natural phosphorus, phosphate rock, and langbeinite, a natural source of potassium that is carefully mined from ancient sea beds in the deserts of the American Southwest. Aurora Innovations has taken generations of gardening experience and distilled it into a distinctive, easy to use formula for