Seachem Additives

  Reef Advantage Strontium™ restores and maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the sa...

Seachem Reef Advantage Magnesium™ is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore...

Marine Buffer™   Raises and maintains pH at 8.3 in all saltwater aquariums Can be used safely in reef tanks Co...

Seachem Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbe...

Seachem Reef Advantage Calcium – 500g Product Description Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) opti...

Coarse, high-purity calcium reactor media   Provides calcium, magnesium, strontium, potassium,and carbonates   ...

  Product Description Reef Builder™ raises carbonate alkalinity without immediately impacting on pH. With long term use there will be a ...

Seachem Reef Calcium™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aq...

Seachem Reef Advantage Calcium – 250g Product Description Reef Advantage Calcium™ is a non-caustic (pH 8.3–8.6) optimized blen...

SeaChem De*nitrate is a high porosity filtration product for the removal and control of nitrate in marine and freshwater aquaria by anaerobic denit...

Acid Buffer™ is a non–phosphate buffer to lower pH and buffer with Alkaline Buffer™. Both buffers are designed for the planted aquarium or for very...

Acid Buffer™ is a non–phosphate buffer to lower pH and buffer with Alkaline Buffer™. Both buffers are designed for the planted aquarium or for very...

Acid Buffer™ is a non–phosphate buffer to lower pH and buffer with Alkaline Buffer™. Both buffers are designed for the planted aquarium or for very...

Alkaline Buffer™ is a non–phosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer™. These buffers are designed for the planted...

Alkaline Buffer™ is a non–phosphate buffer to raise pH and alkalinity (KH) and buffer with Acid Buffer™. These buffers are designed for the planted...

Adjusts pH to the acidic range (4.5‑6.8)Softens water by precipitating calcium and magnesiumAcid Regulator™ adjusts pH to the acidic range (4.5–5.5...