EBayBio-Gen - 250ml IIntensify White, Blue & Violet Coral Colour Reef Essential® Bio-Gen™ is designed to provide bioactive halogens such as iodide, fluoride & bromide to help intensify white, blue & violet coral colour. Reef Essential® Bio-Gen ™ also helps to reduce coral bleaching, improve calcification and acts as a natural resistance improver. This product must be used alongside our Reef Essential® Bio-Enhance™, Reef Essential® Bio-Metals™ & Reef Essential® Bio-Kalium™ 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 total iodine concentration = 0.06-0.09Ppm. Contents: Deionised water Iodide, Fluoride & Bromide Instructions: 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 day Moderately stocked = 0.75ML/100L per day Heavily stocked = 1.00ML/100L per day Or as required to maintain iron between 0.1-0.3Ppm Note: 1mL/100L will raise iron by 0.01Ppm, boron will increase relatively  Moderately stocked = 0.75ML/100L per day Heavily stocked = 1.00ML/100L per day Or as required to maintain total iodine between 0.06-0.09Ppm Note: 1mL/100L will raise total iodine by 0.02Ppm, other halogens will increase relatively Keep out of reach of children. May cause skin irritation. In case of contact with eyes, or swallowed seek medical advice immediately