Hydroponic growing requires hydroponic nutrient solution and additives (supplements) to enhance plant development, maintain a healthy growth rate and result in a maximum yield. Products $34.00 Micro Mix, 1 Gallon Leaf Crop $34.00 Micro Mix, 1 Gallon Vine Crop $3.65 Copper Sulfate - 1 Pound $67.50 DTPA Iron Chelate 5 Pounds $4.45 Micro Fine Sulfur, 1 Pound $16.00 Sodium Molybdate $4.40 Solubor (Boron) 1 Pound $3.90 Zinc Sulfate 1 Pound $4.95 Citric Acid $1.65 Magnesium Sulfate $3.50 Monopotassium Phosphate $5.10 Potassium Nitrate $60.75 Potassium Sulfate (Potash) 50 Pound $2.60 Calcium Nitrate, Greenhouse Grade $9.50 Hydro-Gro Vine Crops $8.50 Nylon Mesh Bag, 50 Micron $24.95 BiOWiSH Crop, 2.2 lbs. $26.90 PH Up, 1 Gallon $26.90 PH Down, 1 Gallon $9.50 Hydro-Gro Leafy Greens $130.00 Pre-EMPT Organic Hydroponic Fertilizer $6.00 Food Grade Potassium Bicarbonate $10.76 pH Up, 32 Ounces $10.76 pH Down, 32 Ounces $16.00 Manganese Sulfate $23.00 Hydro-Gro Cannabis Veg $23.00 Hydro-Gro Cannabis Flower Additional Information Nutrients Raw Minerals Biowish pH Adjusters