Description

Red Sea Foundation™ C Magnesium (Mg)

The Red Sea Foundation™ C Magnesium (Mg) supplement helps reef keepers maintain stable magnesium levels in marine and reef aquariums. Magnesium plays a critical role in supporting calcium and alkalinity balance, which directly affects coral growth, skeletal formation, and long-term reef stability.

In reef aquariums, magnesium prevents calcium carbonate from precipitating out of the water. As a result, calcium and alkalinity remain available for corals to use during calcification. When magnesium levels drop, reef systems often struggle to maintain stable parameters. Therefore, regular magnesium supplementation becomes essential, especially in SPS-dominated or heavily stocked reef tanks.

Red Sea Foundation™ C uses a highly pure magnesium blend that dissolves easily and delivers consistent results. Because of its controlled formulation, reef keepers can correct magnesium levels accurately without causing sudden swings in water chemistry. This controlled dosing helps protect sensitive corals and supports steady coral growth.

Foundation™ C Magnesium integrates seamlessly into Red Sea’s Reef Care Program and works alongside Foundation™ A (Calcium) and Foundation™ B (Alkalinity). When used together, these supplements help reef keepers maintain the correct ionic balance found in natural seawater. In addition, consistent magnesium levels improve overall system stability and reduce long-term maintenance issues.

For best results, reef keepers should test magnesium levels regularly and adjust dosing based on tank demand. Red Sea recommends maintaining magnesium within natural seawater ranges to support optimal coral health and colouration. Because every reef system differs, gradual adjustments deliver the most reliable outcomes.

Overall, Red Sea Foundation™ C Magnesium (Mg) provides a dependable solution for maintaining balanced reef chemistry. It supports calcium stability, protects alkalinity, and helps reef aquariums thrive over time.

Technical Specifications

Formula & Purpose

• Function: Maintains stable magnesium levels in marine and reef aquariums

• Role in Reef Chemistry:

  • Prevents calcium carbonate precipitation

  • Supports calcium and alkalinity stability

  • Essential for coral skeletal growth and long-term system balance

• Purity: High-purity magnesium salts

• Solubility: Fully soluble, fast-acting liquid formula

Compatibility

• Suitable For: Marine and reef aquariums

• Reef Types: SPS, LPS, soft coral, and mixed reef systems

• Program Compatibility: Designed to work with

  • Foundation™ A (Calcium)

  • Foundation™ B (Alkalinity)

• Dosing Systems: Suitable for manual dosing or automated dosing pumps

Testing

• Recommended Test Method: Reliable magnesium test kit

• Target Magnesium Level: Approx. 1280–1350 ppm (natural seawater range)

Red Sea Foundation™ C Magnesium (Mg) – Dosing Guidelines

Standard Dosing

• Dose Rate:
  1 ml per 100 litres increases magnesium by 1 ppm

Adjustment & Maintenance

• Test magnesium levels regularly

• Increase magnesium gradually to avoid sudden parameter changes

• Adjust daily dosing based on aquarium demand and test results

Best Practice

• Do not increase magnesium by more than 20 ppm per day

• Use alongside stable calcium and alkalinity levels for best results

• Shake well before use

Storage & Safety

• Storage: Keep tightly closed in a cool, dry place

• Handling: Avoid skin and eye contact; wash hands after use

• Aquarium Use Only: Not for human consumption