1 Compo base feed is our convenient 1 part system. 1 Compo is highly concentrated to save you money while also providing all the necessary nutrients to your plants. These products have all of the essential macro and micro growth nutrients needed for excellent plant growth and bloom phases. Our formula is based on Liebig's Law of the minimum, providing your plants with the 17 essential nutrients. It is critical that plants not only get sufficient nutrients but also in the appropriate ratio. The high-quality, food-grade nutrients will be absorbed entirely and leave little to no residue behind, leaving your plants clean and strong.