Phos Seabird Guano Powder led Each spectrum is tuned for

Each spectrum is tuned for a specific application: PhysioSpec Indoor and Greenhouse are broad-spectrum options optimized for full-cycle plant growth

which help deliver high flow and pressure

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Roots Organics Nitro Bat Guano is an excellent source of nitrogen

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Phos Seabird Guano Powder led Each spectrum is tuned forRoots Organics Seabird Guano Powder is an excellent source of phosphate and calcium. Carefully sifted and processed to make it easy to work with, Roots Organics Seabird Guano encourages vigorous growth and is fast acting for quick results. All of the Roots Organics guanos have been carefully sourced for quality and harvested with habitat friendly methods so you and your garden get performance with principles.