Salifert Potassium Test Kit
Salifert’s Potassium Test Kit provides a quick, accurate, and reliable method for measuring potassium levels in your reef aquarium. Potassium test kits are notoriously difficult to use on average, but Salifert’s kit provides a method to take potassium readings without the stress and headache, giving you a precise analysis in minutes. In naturally occurring saltwater, potassium levels usually equal around 400 ppm. Coral start to become deficient, potentially losing coloration at around 350 ppm and lower.