Your marine friends need safe, balanced water to grow and thrive in, so make sure their home is safe with the Salifert Magnesium Aquarium Water Test Kit. Fintastic for measuring the levels of magnesium in your aquarium’s water, this test kit can accurately and immediately perform checks up to fifty times, meaning you can rest easy knowing your pals are swimming in safe water for a long time to come. Balanced levels of magnesium are important for the health of your plant friends, so this kit can help you make sure they can photosynthesize properly. These tests change color to detect even minor fluctuations so you can find them early on for vital intervention as needed so your fish, plants, and other marine friends can swim about happily and healthily.