The Salifert Potassium Reef Test Kit is a premium product specifically designed for the passionate aquarium hobbyists. This specialized kit offers a precise and straightforward method to gauge the potassium levels in your reef aquarium, ensuring the optimal health and vibrancy of your coral and other marine life.\nWith its easy-to-follow instructions and rapid results, this kit is an indispensable tool for anyone committed to maintaining a flourishing reef ecosystem. The test can be completed in approximately 90 seconds, providing a sharp color change that indicates the potassium levels. The test kit's resolution is 15 ppm, which, when combined with the ease of use and the sharp color change, results in a highly accurate potassium test kit.\nWe are confident that the Salifert Potassium Reef Test Kit is a revolutionary product in potassium testing. The Reef Test is a part of our new line of test kits that are designed to be quick, easy, and accurate, making aquarium maintenance a bree.