Cutting Edge Solutions Uncle John's Blend SP 0-0-27 Size:5 Pounds For hydroponics change the nutrient

For hydroponics change the nutrient reservoir weekly

All steel interlocking frame

#741610 ARCS Stage 3 Replacement pH Neutralizing/Remineralizing Cartridge to balance out and stabilize the pH

With proper technique

Cutting Edge Solutions Uncle John's Blend SP 0-0-27 Size:5 Pounds For hydroponics change the nutrientUncle Johns Blend SP 4 0 27 combines essential trace micronutrients such as Manganese (Mn), Zinc (Zn), Iron (Fe), and Sulfur (S) along with the essential primary nutrient Potassium (K) to enhance the genetic potential of plants. Uncle Johns Blend SP 4 0 27 is the Soluble Powder(SP) version of the original liquid Uncle Johns Blend. Uncle Johns SP 4 0 27 is recommended as a supplement in all stages of plant growth, but is most critical in the flowering