Tropic Marin® Pro-Reef Sea Salt – Pharmaceutical-Grade Salt for Modern Reefs
Tropic Marin® Pro-Reef Sea Salt is a premium, synthetic sea salt specifically engineered to meet the high demands of modern reef aquariums.Manufactured from pharmaceutical-grade raw materials, it contains all 70 trace elements found in natural tropical seawater in their exact proportions.Pro-Reef is uniquely formulated with optimized concentrations of calcium and magnesium to support coral calcification, while its adjusted buffering system stabilizes pH and alkalinity, making it the ideal foundation for delicate stony corals, invertebrates, and sensitive marine fish.
Optimized Chemistry & Superior Purity
Pro-Reef provides a stable, nature-identical environment that simplifies the maintenance of complex reef ecosystems.
Optimized Calcium & Magnesium: Provides approximately 440 ppm Calcium and 1350 ppm Magnesium to promote rapid coral skeletal growth and coralline algae development.
Controlled Alkalinity (7–8° dKH): Designed with a lower, more natural buffering capacity that is particularly suitable for systems using calcium reactors or specialized mineral additives.
Pharmaceutical-Grade Purity: Free from nitrates, phosphates, and other unwanted synthetic additives, ensuring you only add what your reef needs.
Mixed-Crystal Method: Ensures that all 70 trace elements are completely soluble and biologically available, preventing the "clumping" or precipitation common in lower-quality salts.
Exceptional Solubility: Dissolves quickly and clearly in RO/DI water, allowing for stress-free water changes without leaving behind residue or film.
Technical Parameters (at 35 psu)
Parameter
Target Value
Alkalinity
7 – 8° dKH
Calcium (Ca2+)
~440 ppm
Magnesium (Mg2+)
~1350 ppm
pH Value
8.0 – 8.4
Specific Gravity
1.025 – 1.027 (at 25°C)
FAQ Section: Common Questions
How do I mix Tropic Marin® Pro-Reef? Always add the salt to the water, never water to the salt. Dissolve approximately 35 ml (37–40 g) per liter of RO/DI water at 23–25°C while circulating. The water is ready once it is completely clear.
Is this salt suitable for fish-only tanks?While it can be used for any marine tank, Pro-Reef is specifically optimized for reefs with high calcium demands. For fish-only systems with higher alkalinity needs, Tropic Marin® Classic may be a more cost-effective choice.
Can I store the mixed saltwater? Yes. Due to its high-purity pharmaceutical salts, the prepared saltwater can be stored for several weeks in a clean, circulated container before use without significant parameter shifts.
Why is the alkalinity lower than some other brands?Pro-Reef targets a natural seawater alkalinity of 7–8° dKH. This prevents the risk of "alkalinity burn" in ultra-low nutrient systems and provides a stable baseline for those using dedicated dosing pumps or reactors.
Related Products
Tropic Marin® All-For-Reef: The perfect liquid companion to maintain the parameters provided by Pro-Reef between water changes.