When it comes to high-quality magnesium fertilizers, Custom Hydro is your go-to supplier. We offer a range of pure magnesium options, including Magnific and Magnisal magnesium nitrate fertilizer, K+S and Giles Magriculture magnesium sulfate (epsom salt) fertilizer, and Dissolvine/Rexolin magnesium EDTA. Our expert team can help you choose the best option for your specific crop needs.