Micro 5-0-1 Humboldt Nutrients Micro formula, was designed in Humboldt County to be used with our Grow, and Bloom, to be a complete growing nutrient system for hydroponics as well as other growing mediums. Humboldt Nutrients has developed the most effective three-part fertilizer available. Micro contains three separate chelating agents, triple insurance against nutrients falling out of solution or nutrient lock-out. Humboldt Nutrients Micro has all the micronutrients necessary to create healthy plants, strong aromas, and large yields. Through extensive research and development, the Humboldt Nutrients team of chemists has formulated an easy use fertilizing program for use on a variety of vegetables, flowers or herbs. This is the highest quality 3-part chelate line on the market. Our premium three-part chelated nutrient system leaves nothing to chance, and ensures an excellent crop. When used in conjunction with our high powered additives, Humboldt Nutrients assures that our three-part fertilizer program will produce the highest yields and quality