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Roots Organics Extreme Serene kelp extract can be used in conjunction with any potting soil or hydroponic nutrient program
Potassium (K) is also a macro nutritional element
The original Building-Block Nutrient System
P and K so that your high-yield plants flourish
Active Air Indoor-Outdoor Thermometer w/Hygrometer Lighting Roots Organics Extreme Serene kelpActive Air's indoor outdoor thermometer gives you more. Made of sturdy materials to stand up to the climate of your indoor grow room, this essential tool features a large display to read the current temperature and humidity levels. A remote probe allows you to sample two temperatures at once and record the high and low points for both temperature and humidity.
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