Tropic Marin Pro Reef Sea Salt 20kg/600l Box is a premium marine salt mix designed specifically for reef aquariums. Formulated to closely replicate the chemistry of natural seawater, it provides the balanced levels of: calcium, magnesium and trace elements needed to support delicate marine ecosystems. Why is it good?Pro Reef Sea Salt is specially developed with coral dominated reef systems in mind, particularly aquariums containing SPS and LPS corals. It maintains stable levels of key parameters such as calcium and magnesium while keeping alkalinity slightly lower, which is beneficial for modern reef systems that use calcium reactors or dosing methods. The carefully balanced mineral content helps promote strong coral skeleton growth, vibrant colouration, and overall reef stability, while still being perfectly safe for marine fish, invertebrates and other reef inhabitants. Why is it trusted?Tropic Marin salts are manufactured using pharmaceutical grade raw materials and are produced under strict laboratory controlled conditions. This ensures exceptional purity, consistency between batches, and the absence of unwanted contaminants such as nitrates, phosphates or heavy metals. Aquarists and professional reef keepers worldwide trust Tropic Marin for its precision formulation and reliable results, making it one of the most respected brands in marine aquarium care. Why choose Pro Reef Sea Salt? Designed specifically for reef aquariums with corals Balanced calcium, magnesium and trace elements for healthy growth Ideal for SPS and LPS coral systems Made with pharmaceutical grade ingredients for purity Dissolves quickly and mixes clearly for easy preparation Trusted by professional reef aquarists worldwide Treats 600 L If you’re looking to maintain stable water chemistry and a thriving reef environment, Tropic Marin Pro Reef Sea Salt 20kg/600l Box is a dependable choice that helps corals, fish and invertebrates flourish. Guide: To achieve a salinity level of 32-35 ‰ (psu), dissolve 35 ml of Tropic Marin PRO-REEF per liter or approximately ½ cup of Tropic Marin PRO-REEF per US gallon water. Dissolve almost all of the salt in a clean container already filled with the full volume of RO/DI water at a temperature of 73-77°F / 23-25°C while circulating/stirring the water. Do not concentrate the mixture by adding the full amount of salt to a smaller amount of water.
