Silica provides additional strength to the structure of the plant. The added strength helps keep plants from wilting & lodging, but also provides the necessary structure to let the plant extend outward. A plant that can extend can let leaves grow larger in order to gather more light, but also allows for the physical space for more flowering, providing growers with larger yields. Silica is especially helpful for soil-less systems because they lack the natural silica found in soil. Raw Silica is able to be suspended in solution, is pH neutral, will not cloud your water. Raw Silica contains 45% silicon dioxide. Improve the strength of your plants with Raw Silica.