This is a 20-18-38 Kit. We do not send a pre-mix formula (20-18-38) because pre-mix formulations always result in the Calcium Nitrate precipitating (breakdown) into non-soluble gypsum that plants cannot absorb (nutrient lockout). Plus the have a very short shelf life. Sending it this way you get a 4 year plus shelf life. We send the individual components to mix as needed in the included container. To get the best results we send you the individual components and you follow the 3 easy steps below and make your own 20-18-38 as needed: Greenhouse Grade Hydroponics Solution For growing Tomatoes and Peppers and For growing Lettuce, Mustard, Pechay, green leafy vegetables: All items new and repackaged You get 10 pounds Masterblend 4-18-38 and 10 pounds calcium nit. and 5 pound Magnesium Sulfate. Mix it together and you get 25 pounds of 20-18-38 that's safe with no nutrient lock. Use the included mixer container with complete instructions for small batches.
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