Reef Essential® Bio-Kalium™ is designed to provide ionic & complexed potassium as well as boron to help intensify red & pink coral colour. Potassium helps to transport nutrients and when used with boron aids in the production of aragonite.This product must be used alongside our Reef Essential® Bio-Enhance™, Reef Essential® Bio-Metals™ & Reef Essential® Bio-Gen™ supplements as together they will provide the required biomolecules, major, minor and trace colouring elements. If wanting to enhance coral bone growth & density we recommend our Aragonite Enhancers™.Recommended potassium concentration = 375-400ppm.Contents:– Deionised water– Potassium & BoronInstructions:Shaking is not required, however, if product has been left standing for a length of time invert bottle 3-4 times before using.Directions:Add product to high water flow. This product must be used in reef aquariums and can be used on a dosing pump.Dosing:Lightly stocked = 0.50mL/100L per dayModerately stocked = 0.75mL/100L per dayHeavily stocked = 1.00mL/100L per dayOr as required to maintain potassium between 375-400ppmNote: 1mL/100L will raise potassium by 1.0ppm, boron will increase relatively or download our FREE “Q dosing” app!