The Red Sea Magnesium Pro Test Refill provides replacement reagents for the advanced Red Sea Magnesium Pro Test Kit. This essential refill allows reef aquarists to continuously and accurately monitor the magnesium levels within their saltwater aquariums, a critical parameter for coral health and overall reef stability.

Utilizing a precise titration method, this refill ensures exceptionally high accuracy, measuring magnesium with a resolution of 20 ppm. Each refill kit contains sufficient reagents to perform up to 100 individual tests, offering long-lasting value for regular maintenance routines. It is specifically designed to work seamlessly with the original Red Sea Magnesium Pro Test Kit.

This product is ideal for dedicated reef keepers, especially those maintaining demanding SPS and LPS coral systems, who require consistent and reliable data on their water chemistry. Its high accuracy and ample test count make it suitable for both routine monitoring and troubleshooting magnesium imbalances, ensuring optimal conditions for vibrant coral growth and robust invert life.