Base Feed Grow Soil A for water type Hard - 20L (5.28 gal)A+B Soil base feeds are explicitly designed for soil. Our 2 part system 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