Masterblend 4-18-38 Hydroponic Fertilizer MasterBlend fertilizer can be used for hydroponics and soil gardens. It is brand new Masterblend fertilizer that is repackaged into a smaller, more convenient size clear bags. Masterblend can be used for hydroponics, aeroponics, and plants in soil. I am positive you will love using Masterblend. I will also include mixing instructions for greens like lettuce and also nutrient hogs like tomatoes so you can make sure you are mixing the right ratio to feed your plants properly. It is the only fertilizer that I use on my tomato plants. MasterBlend 4-18-38 Fertilizer *IMPORTANT: bags less than 25lbs, will be packed in clear bags MasterBlend 4-18-38 Tomato Vegetable Fertilizer Direct from MasterBlend Fertilizer - for Tomatoes and Vegetables Easy to use and highly concentrated Master Blend fertilizer is perfect for Hydroponics and Soil gardens MasterBlend fertilizers have been the go-to Hydroponic and Garden fertilizers for commercial gardeners for a long time. Their 4-18-38 Tomato and Vegetable Fertilizer provides proven results time after time. Because of the unique composition, it is recommended to use the 4-18-38 together with Magnesium Sulfate (Epsom Salt) and Calcium Nitrate for the ultimate balanced water soluble fertilizer. · MasterBlend 4-18-38 is Water Soluble · Direct from MasterBlend - Fertilizer for Tomatoes and Vegetables · Highly concentrated! · Master Blend fertilizer is perfect for Hydroponics and Soil gardens It is recommended to use MasterBlend 4-18-38 in conjunction with Calcium Nitrate and Magnesium Sulfate (NOT INCLUDED) in the following recipes... **IMPORTANT! Do not mix the 3 components (Masterblend, Calcium Nitrate Epsom Salts) together! Doing so will cause nutrient lockout and all the nutrients will not be available to your plants. You can mix the MasterBlend and Epsom Salts together, but not the Calcium Nitrate! Ideally you should mix each component separately in your water until thoroughly dissolved before mixing the next component. DO NOT BUY KITS THAT ARE PREMIXED! 1 Gallon Recipe: 2.4 grams MasterBlend 4-18-38 2.4 grams Calcium Nitrate (15.5-0-0) 1.2 grams Magnesium Sulfate (Epsom Salt) 5 Gallon Recipe: 12 grams MasterBlend 4-18-38 12 grams Calcium Nitrate (15.5-0-0) 6 grams Magnesium Sulfate (Epsom Salt) Guaranteed Analysis Total Nitrogen (N)................................................ 4% 3.5% Nitrate Nitrogen 0.5% Ammoniacal Nitrogen Available Phosphate (P2O5)............................. 18% Soluble Potash (K2O)........................................ 38% Magnesium (Mg) (Total).................................. 0.50% 0.50% Water Soluble Magnesium (Mg) Boron (B)........................................................ 0.20% Copper (Cu)..................................................... 0.05% 0.05% Chelated Copper (Cu) Iron (Fe)........................................................... 0.40% 0.40% Chelated Iron (Fe) Manganese (Mn)............................................. 0.20% 0.20% Chelated Manganese (Mn) Molybdenum (Mo)........................................... 0.01% Zinc (Zn).......................................................... 0.05% 0.05% Chelated Zinc (Zn) Same day Shipping if ordered before 12pm