Contains a balanced solution of major, minor and trace elements that are essential for calcification, colour, overall health and vitality for all inhabitants in your reef aquarium. Magnesium + is designed to replenish depleted elements used by coral, fish and other organisms in your reef aquarium. For more information on individual elements, see our elements range on our website. Parameters: Magnesium levels should be maintained between 1250 - 1400 ppm Dosing: 4ml of Magnesium + in 100L of water raises the magnesium level by 1 ppm This product can be manually dosed or with a dosing pump. Basic dosing instructions: Lightly stocked aquarium -1.0ml/100L daily Medium stocked aquarium – 1.5ml/100L daily Heavily stocked aquarium – 2.0/100L daily INGREDIENTS: Magnesium Chloride, Magnesium sulphate Potassium , Boron Magnesium @ 25000 ppm CAUTION Keep out of reach of children and pets. Not for human consumption. For marine aquarium use only. STORAGE Keep out of direct sunlight. Always secure cap on.