Salt & Maintenance

Tropic Marin Pro‑Reef Sea Salt 25 kg is a pharmaceutical‑grade marine salt mix specifically formulated to meet the demanding needs of modern reef aquariums. It contains carefully balanced levels of calcium, magnesium, carbonate alkalinity, and over 70 trace elements found in tropical seawater — creating ideal conditions for the health and growth of corals, fish, and invertebrates. Key Features Premium pharmaceutical‑grade sea salt for consistent quality. Optimized calcium (~440 ppm) and magnesium (~1350 ppm) levels support coral skeletal growth. Contains all essential major and trace elements in natural proportions. Excellent solubility and clear mix without unwanted residues. Stable pH and carbonate hardness (buffering capacity) ideal for reef systems. Free from nitrates and phosphates, reducing risk of algae issues. Suitable for use with calcium reactors and advanced reef setups. Benefits for Your Reef TankTropic Marin Pro‑Reef helps create stable and natural‑like seawater conditions, which promote faster coral growth and long‑term aquarium health. It also supports water stability, particularly in carbonate hardness and pH, reducing stress on livestock and improving overall tank balance. How to Use (Dosing & Mixing) Add salt to water: Always add the aquarium salt to water — never water to salt. Mix in RO/DI water: Fill a clean container with RO/DI water at 73–77 °F (23–25 °C). Start circulation. Measure correctly: Add Tropic Marin Pro‑Reef salt slowly while circulating until dissolved. Check parameters: Use a refractometer or hydrometer to achieve a specific gravity of 1.025–1.027 and pH 8.0–8.4. Use water immediately: Once clear and stable, the saltwater is ready for water changes or tank start‑ups. Typical ApplicationDesigned for both new tank setups and routine water changes, Tropic Marin Pro‑Reef Sea Salt suits reef tanks of all sizes, from mixed fish and coral systems to heavily stocked SPS coral displays.

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Tropic Marin Pro‑Reef Sea Salt 2 kg is a pharmaceutical‑grade marine salt mix specifically formulated to meet the demanding needs of modern reef aquariums. It contains carefully balanced levels of calcium, magnesium, carbonate alkalinity, and over 70 trace elements found in tropical seawater — creating ideal conditions for the health and growth of corals, fish, and invertebrates. Key Features Premium pharmaceutical‑grade sea salt for consistent quality. Optimized calcium (~440 ppm) and magnesium (~1350 ppm) levels support coral skeletal growth. Contains all essential major and trace elements in natural proportions. Excellent solubility and clear mix without unwanted residues. Stable pH and carbonate hardness (buffering capacity) ideal for reef systems. Free from nitrates and phosphates, reducing risk of algae issues. Suitable for use with calcium reactors and advanced reef setups. Benefits for Your Reef TankTropic Marin Pro‑Reef helps create stable and natural‑like seawater conditions, which promote faster coral growth and long‑term aquarium health. It also supports water stability, particularly in carbonate hardness and pH, reducing stress on livestock and improving overall tank balance. How to Use (Dosing & Mixing) Add salt to water: Always add the aquarium salt to water — never water to salt. Mix in RO/DI water: Fill a clean container with RO/DI water at 73–77 °F (23–25 °C). Start circulation. Measure correctly: Add Tropic Marin Pro‑Reef salt slowly while circulating until dissolved. Check parameters: Use a refractometer or hydrometer to achieve a specific gravity of 1.025–1.027 and pH 8.0–8.4. Use water immediately: Once clear and stable, the saltwater is ready for water changes or tank start‑ups. Typical ApplicationDesigned for both new tank setups and routine water changes, Tropic Marin Pro‑Reef Sea Salt suits reef tanks of all sizes, from mixed fish and coral systems to heavily stocked SPS coral displays.

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Designed to meet the special requirements of modern reefing using pure, fast-dissolving pharmaceutical-grade salts. Contains all trace elements found in the natural seawater with a small secret tweak used by Euro Corals for years. A perfectly-balanced reef salt that will promote better calcification, growth, and coloration of all corals. Ideal to start a new reef aquarium, reduce unwanted heavy metals, or for regular partial water change to help export organic pollutants, phenols, humic substances, and nettle poisons produced by some corals or other organisms. It contains a very low uncritical amount of no3 and po4 that will reduce “shock” with bigger water changes. It can be used in systems with a calcium reactor, but it is designed mainly for balling methods. Always lab and ICP tested for quality control. How to use: Always add the salt to the water, never the water to the salt! Add 35ml (approx 38-39g) per liter to the water at around 24-25°C. After it is fully dissolved and clear, measure the salinity. Keep adding small amounts of salt if needed until you reach 1.026sg (34.50ppt). Basic Parameters: Alkalinity (KH) 7.2-8dKH, Calcium (Ca) 420-440ppm and Magnesium (Mg) 1350-1380ppm. 

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Tropic Marin PRO-REEF Sea Salt 25kg Features: The pharmaceutical grade sea salt especially for modern reef aquaria.   Tropic Marin® PRO-REEF Sea Salt has been designed to meet the special requirements of reef aquariums with optimized concentrations of calcium and magnesium, which promote the growth of corals. The lower buffering and the correct pH value serve to stabilize the natural water values, and particularly, the hardness of carbonates, even with the use of calcium reactors. Natural and stable conditions for delicate marine life are achieved only by accurately balancing all influencing factors.   Tropic Marin® PRO-REEF is thus the ideal foundation for the care and growth of fish, corals and other aquatic invertebrates in modern reef aquariums. Use seawater prepared with Tropic Marin® PRO-REEF for regular water changes in your seawater aquarium, to start a new aquarium and to re-equilibrate the pH of a tank.     Benefits: • Optimizes calcium- and magnesium concentrations as well as alkalinity and pH. • Designed to meet the special requirements of modern reef aquaria with higher calcium requirements. • Especially designed for use with calcium reactors or mineral additives. • To maintain the alkalinity in a 7-8° dKH range. • Manufactured from pure, pharmaceutical grade salts. • Contains all major- and minor elements in the exact proportions found in tropical sea water. • The 70 trace elements are completely soluble due to the use of the mixed-crystal method. • Compliance with the most stringent quality control measures for the production of pharmaceuticals ensures nature-identical seawater. • Free from nitrates, phosphates and other unwanted chemicals.     How to use: 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.   Note: Always add the salt to the water, never the water to the salt.  Making a concentrated mixture will cause a calcium carbonate precipitate to form.   When you have added ALMOST all of the salt and the mixture is fully dissolved and clear, start measuring the specific gravity with a hydrometer or similar instrument. Keep adding small amounts of salt until the specific gravity is the value you desire. The specific gravity of the sea salt solution should range from 1.025 to 1.027 (at 73-77°F / 23-25°C) and the pH-value should be in the range of 8.0 – 8.4. If all parameters are correct, the salt water is ready to use.   After setting up a new aquarium it takes a few weeks of water being circulated and correct lighting conditions to achieve the biologically stable environment required for the care and breeding of delicate marine organisms.   A weekly, partial water change, replacing 10 % of the total water volume with Tropic Marin® PRO-REEF, will help to maintain the water quality that your livestock needs for good health.   Parameters: approx. 7° KH, calcium approx. 440 ppm, magnesium approx. 1350 ppm   Application: For reef tanks with higher calcium requirements. To maintain the alkalinity in a 7-8° dKH range; particularly suitable when using a calcium reactor.   Use the new dosing calculator for an easy determination of the required amount of salt for your aquarium.

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Tropic Marin PRO-REEF Sea Salt 25kg Features: The pharmaceutical grade sea salt especially for modern reef aquaria.   Tropic Marin® PRO-REEF Sea Salt has been designed to meet the special requirements of reef aquariums with optimized concentrations of calcium and magnesium, which promote the growth of corals. The lower buffering and the correct pH value serve to stabilize the natural water values, and particularly, the hardness of carbonates, even with the use of calcium reactors. Natural and stable conditions for delicate marine life are achieved only by accurately balancing all influencing factors.   Tropic Marin® PRO-REEF is thus the ideal foundation for the care and growth of fish, corals and other aquatic invertebrates in modern reef aquariums. Use seawater prepared with Tropic Marin® PRO-REEF for regular water changes in your seawater aquarium, to start a new aquarium and to re-equilibrate the pH of a tank.     Benefits: • Optimizes calcium- and magnesium concentrations as well as alkalinity and pH. • Designed to meet the special requirements of modern reef aquaria with higher calcium requirements. • Especially designed for use with calcium reactors or mineral additives. • To maintain the alkalinity in a 7-8° dKH range. • Manufactured from pure, pharmaceutical grade salts. • Contains all major- and minor elements in the exact proportions found in tropical sea water. • The 70 trace elements are completely soluble due to the use of the mixed-crystal method. • Compliance with the most stringent quality control measures for the production of pharmaceuticals ensures nature-identical seawater. • Free from nitrates, phosphates and other unwanted chemicals.     How to use: 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.   Note: Always add the salt to the water, never the water to the salt.  Making a concentrated mixture will cause a calcium carbonate precipitate to form.   When you have added ALMOST all of the salt and the mixture is fully dissolved and clear, start measuring the specific gravity with a hydrometer or similar instrument. Keep adding small amounts of salt until the specific gravity is the value you desire. The specific gravity of the sea salt solution should range from 1.025 to 1.027 (at 73-77°F / 23-25°C) and the pH-value should be in the range of 8.0 – 8.4. If all parameters are correct, the salt water is ready to use.   After setting up a new aquarium it takes a few weeks of water being circulated and correct lighting conditions to achieve the biologically stable environment required for the care and breeding of delicate marine organisms.   A weekly, partial water change, replacing 10 % of the total water volume with Tropic Marin® PRO-REEF, will help to maintain the water quality that your livestock needs for good health.   Parameters: approx. 7° KH, calcium approx. 440 ppm, magnesium approx. 1350 ppm   Application: For reef tanks with higher calcium requirements. To maintain the alkalinity in a 7-8° dKH range; particularly suitable when using a calcium reactor.   Use the new dosing calculator for an easy determination of the required amount of salt for your aquarium.

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Tropic Marin Syn-Biotic Sea Salt is a pharmaceutically pure sea salt with probiotic bacteria and prebiotic bacteria food. The new Tropic Marin Syn-Biotic Sea Salt contains probiotic bacteria for fish and shrimp and special prebiotic bacteria food to promote probiotic bacterial growth and to create low-nutrient conditions in the aquarium for LPS and SPS corals. The term synbiotic refers to supplements which combine probiotics and prebiotics in a form of synergism. Tropic Marin Syn-Biotic Sea Salt is ideal when you are setting up a new tank and every time you expand the tank’s stock. It has been proven that probiotic bacteria help to overcome stress and disease while enhancing the health and well-being of fish and crustaceans. For the best results, the aquarium should have a water change with Syn-Biotic Sea Salt prior to any new stock being introduced. The contained prebiotic additives promote the integration of nitrates and phosphates in bacterial mass for low-nutrient conditions and the vivid colours of LPS and SPS corals. For a sustained acclimatization of animals to the aquarium conditions and to stabilize the microbiology of the tank system we recommend using Syn-Biotic Sea Salt permanently. Each water change with Syn-Biotic Sea Salt automatically adds the probiotic bacteria necessary to maintain healthy biological processes. Tropic Marin Syn-Biotic Sea Salt it has been proven that probiotic bacteria improve the health and well-being of fish and crustaceans and assist them in overcoming stressful situations and illness prebiotic additives promote the integration of nitrates and phosphates in bacterial mass for low-nutrient conditions and the vivid colours of LPS and SPS corals contains additional nitrifying and de-nitrifying bacteria to support the nitrogen cycle to maintain the alkalinity in a 8-9 °dH range ideal for a new tank installation, a new stocking process and for every livestock increase suitable for permanent use - for a stable microbiology within the aquarium dissolves in water quickly and completely produced with pharmaceutically pure salts, without any nitrate or phosphate additives or other unnatural enrichments universally applicable - suitable for keeping and breeding fish, corals and other invertebrates, as well as seaweed Use of Tropic Marin Syn-Biotic Sea Salt:To achieve a salinity level of 32 - 35 ‰ (psu), dissolve 35 ml (approx. 37-40 g/1.3-1.4 oz.) of Tropic Marin Syn-Biotic for every litre or one half cup for every US-gallon of water in a container, stirring continuously. The specific gravity of the sea salt solution should be 1.025 to 1.027 at a temperature of 25 °C/77 °F. The prepared saltwater can be used as soon as the salt is fully dissolved. Note: Always add the sea salt to the water - not the other way round. It is normal for the salt water to turn slightly cloudy and this indicates that the synbiotic additives are taking effect. After setting up a new aquarium it takes a few weeks of circulating and lighting to establish stable biological conditions for the care of delicate marine organisms. Changing up to 10 % of the water every week using Tropic Marin Syn-Biotic helps to keep the water quality within the parameters most important to the delicate marine life in your aquarium.

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Bio- Actif sea salt contains pure pharmaceutical-grade sea salt with natural bioactive substances to support ideal microbiological conditions in a saltwater aquarium. The salt contains all the macro and trace elements in the same proportions as found in tropical seawater and is particularly beneficial for corals. All 70 trace elements dissolve optimally and are stabilised by bioactive substances. Bio-Actif sea salt provides marine fauna in saltwater aquariums the optimal amounts of calcium and magnesium. It also contains a prebiotic bacterial food that helps stabilise the microbiology in the aquarium and improves the water quality as well. Ingredients: ► Macro elements : Calcium, Chlorine, Potassium, Magnesium, Sodium, Sulfur. ► Microelements : aluminum, antimony, arsenic, barium, beryllium, bismuth, lead, boron, bromine, cadmium, cesium, cerium, chromium, cobalt, dysprosium, iron, erbium, europium, fluorine, gadolinium, gallium, germanium, gold, hafnium , Holmium, Indium, Iodine, Iridium, Carbon, Copper, Lanthanum, Lithium, Lutetium, Manganese, Molybdenum, Neodymium, Nickel, Niobium, Osmium, Palladium, Platinum, Praseodymium, Mercury, Rhenium, Rhodium, Rubidium, Ruthenium, Samarium, Scandium , Selenium, Silicon, Silver, Nitrogen, Strontium, Tantalum, Tellurium, Terbium, Thallium, Thorium, Thulium, Titanium, Tungsten, Vanadium, Ytterbium, Yttrium, Zinc, Tin, Zirconium. Application and dosage: A salinity level between 32 and 35‰ is usually used as a reference for the salinity of saltwater aquariums. Dissolve 35 ml of Tropic Marin Bio-Actif per 1 litre of water in a container. The saltwater is ready to use when the salt has completely dissolved and the solution is clear. Tip: The specific gravity of the saltwater should be between 1.022 and 1.024 at 25°C. To maintain good water quality, replace 10% of aquarium water with saltwater prepared with Tropic Marin Bio-Actif once every week.

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