Jack’s 15-5-20 (25lbs) Nutrients There are species in the

There are species in the root pack that will also deter algae growth on rockwool when the root pack is added to your recirculating reservoir at the rate of 1/3 tsp per gallon

Economical due to long average life

Ultra light in weight

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Jack’s 15-5-20 (25lbs) Nutrients There are species in thePrefer Tap Water? Allow your plants to drink up this formula designed to provide all the macro, secondary and micro nutrients in a one part system. Specifically formulated for tap, city or well water types with slightly higher alkalinity & pH. This combination of nutrients will lower pH over time while including the extra soluble calcium, magnesium and the right balance of micronutrients.