PURE Reef Salt Mix - Nyos

Nyos PURE Salt Mix is a premium synthetic sea salt formulated to deliver exceptional purity, consistency, and reliability for modern reef aquariums. Manufactured using pharmaceutical-grade ingredients and a specialized blending process, PURE provides stable, near-natural seawater parameters while minimizing unwanted contaminants that can impact aquarium health.

Unlike many salt mixes produced through seawater evaporation, Nyos PURE utilizes highly refined sodium chloride and ultra-pure calcium and magnesium compounds to create an exceptionally clean salt. The result is crystal-clear mixed saltwater with no yellow discoloration and virtually no insoluble residue, helping keep your mixing containers and storage bins cleaner while reducing maintenance.

Thanks to its fine particle size and premium ingredients, Nyos PURE dissolves in approximately five minutes at room temperature and is ready for immediate use without requiring extended mixing or aging. Every batch is ICP-tested and documented, allowing hobbyists to verify the exact chemistry of their salt mix before it ever enters their aquarium.

Designed around natural seawater values rather than elevated parameters, Nyos PURE supports healthy coral growth, vibrant coloration, and excellent polyp extension while remaining suitable for both routine water changes and larger system maintenance.

Key Features of Nyos PURE Salt Mix

• Pharmaceutical-grade raw ingredients for exceptional purity
• Crystal-clear saltwater with no yellow tint
• Dissolves in approximately 5 minutes
• Minimal residue left behind after mixing
• Consistent chemistry from the first scoop to the last
• Near-natural seawater parameters
• Supports coral growth, coloration, and polyp extension
• Free of organic additives that may contribute to nuisance algae or cyanobacteria
• Suitable for both small and large water changes
• Every batch is ICP tested and quality verified

How Much Nyos PURE Salt Do You Need Per Gallon?

Nyos publishes an exact dose rather than a range: use 39 grams per litre to reach 34 ppt, or 40 grams per litre to reach 35 ppt. That works out to roughly 148–151 grams per US gallon. Always confirm final salinity with a calibrated refractometer before the water goes into your display.

• 5 gallons (19 L) — about 0.76 kg of salt
• 10 gallons (38 L) — about 1.5 kg of salt
• 25 gallons (95 L) — about 3.8 kg of salt
• 50 gallons (189 L) — about 7.6 kg of salt

Need a different volume? Run the numbers with our saltwater mix calculator.

How Long Does Nyos PURE Take to Dissolve?

Nyos PURE dissolves in approximately five minutes at room temperature. The fine, evenly matched particle size means it goes clear quickly and does not need to be aged overnight before use, so you can mix a water change and use it the same session. A circulation pump or powerhead is still recommended for even mixing, and letting larger batches run for an hour helps stabilize gas exchange and pH.

What Salinity and Specific Gravity Should You Mix To?

Natural seawater sits at about 35 ppt, which reads roughly 1.0264 specific gravity at 77°F. Most reef aquariums are kept at that level, and Nyos publishes the dose to hit it exactly: 40 grams per litre for 35 ppt, or 39 grams per litre for a slightly lower 34 ppt.

• Mixed reef and SPS systems — 35 ppt (about 1.026) is the usual target, matching natural seawater.
• Fish-only systems — often run a little lower, around 33–34 ppt.
• Measuring — a refractometer calibrated with a known 35 ppt standard is far more reliable than a swing-arm hydrometer. Specific gravity readings shift with temperature, so compare at a consistent temperature.

Because Nyos PURE is blended to a published dose rather than a range, weighing the salt gets you close on the first try — but always confirm with a meter before the water reaches livestock.

Nyos PURE 10 kg vs 20 kg: Which Size Should You Buy?

Both sizes are the identical formula — only the quantity differs.

• 10 kg mixes roughly 260 litres, about 68 US gallons of saltwater at 34 ppt. A good fit for nano and mid-size systems, or for anyone trying Nyos PURE for the first time.
• 20 kg mixes roughly 520 litres, about 135 US gallons. The better value per gallon for larger displays or frequent, higher-volume water changes.

Because every batch is ICP tested, buying the larger size also means more water changes from a single verified batch. Compare it against the rest of our aquarium salt mixes before deciding.

Is Nyos PURE Good for SPS Corals?

Yes. Nyos PURE targets near-natural seawater values — alkalinity around 8.5 dKH rather than the elevated levels some reef salts use — which suits SPS-dominated and mixed reef systems where alkalinity is kept deliberately stable and supplemented separately. Because it contains no organic additives, it also avoids feeding the nuisance algae and cyanobacteria that can follow richer salt mixes.

Nyos PURE Water Parameters (35 ppt)

• Alkalinity: 7.5–8.9 dKH
• Calcium: 415–450 ppm
• Magnesium: 1320–1400 ppm
• Potassium: 385–430 ppm
• Bromine: 57–67 ppm
• Boron: 4–5 ppm
• Strontium: 8–12 ppm
• Sulfur: 860–960 ppm
• Lithium: 100–250 µg/L
• Nickel: 0–10 µg/L
• Molybdenum: 0–15 µg/L
• Vanadium: 0–5 µg/L
• Manganese: 0–5 µg/L
• Iodine: 30–90 µg/L
• Iron: 0–35 µg/L
• Barium: 0–21 µg/L
• Silicon: 0–225 µg/L
• Phosphate: 0–0.04 ppm

Why Choose Nyos PURE?

Every batch of Nyos PURE is individually ICP analyzed to verify its composition and consistency. A QR code on the packaging provides access to the complete laboratory analysis, giving reef keepers confidence that every water change starts with clean, precisely balanced saltwater. Whether you’re maintaining a thriving mixed reef or an SPS-dominated aquarium, Nyos PURE delivers the purity, consistency, and performance needed to keep your reef looking its best.