Bio Leaf K-Lite 12-1-1-10Ca-3Mg was developed to mimic the nutrient profile orchids are exposed to in their natural environment. It is a high-quality compounded formulation that contains all the macro and micronutrients (trace elements), as well as calcium and magnesium but with reduced levels of potassium and phosphorus. Research has indicated that in nature in their natural state, orchids grow in an environment in which they are exposed to very low levels of available potassium, and they have adapted mechanisms to conserve and accumulate it. However most cultured orchids are exposed to much higher levels of potassium and as a result store excessive amounts, which accumulates in potting media. Studies have shown that excessive levels of potassium can interfere with the absorption of calcium and magnesium.