Brightwell Aquatics - POTASSION#149; Highly-concentrated ionic potassium solution.#149; Provides potassium, an important componentof aragonite (the mineral secreted as skeletalmaterial by corals and other reef-building marineorganisms), complexed into pigments that enhanceblue coloration of some small-polyp stony corals,important to proper neurological function, anddepleted in marine aquaria by livestock.#149; 80,000 ppm K; considerably stronger and moreeconomical than competing potassium products.#149; May be used to combat potassium depletion thatoften accompanies the use of zeolite-based filtrationmethods employed to maintain ultra-low-nutrientaquaria.#149; Formulated by a marine scientist.Liquid500-ml - UPC: 810086012237