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Terms and Conditions Apply!
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The Red Sea Magnesium Pro Test Kit is a highly accurate titration test designed for advanced reef aquarists who want to maintain precise magnesium (Mg) levels in their marine aquariums. Magnesium plays a critical role in maintaining the balance between calcium and alkalinity, supporting strong coral growth, skeletal development, and overall reef health. This test kit is an essential tool for SPS and LPS reef keepers following the Red Sea Reef Care Program (RCP) or any aquarist looking to optimize water chemistry for vibrant and healthy corals.
High Accuracy: Measures magnesium levels in the range of 1,000–1,800 ppm with an accuracy of ±15 ppm
Reef-Specific: Tailored for the needs of reef aquariums where maintaining stable magnesium is crucial for coral calcification
Advanced Titration Method: Provides precise, reliable results essential for balanced calcium and alkalinity supplementation
Complete Kit: Includes reagents, high-quality glass vial, and an easy-to-read titration syringe for consistent testing
Long-Lasting: Performs up to 100 tests, offering excellent value for ongoing reef maintenance
Collect a water sample using the provided glass vial
Add the reagents step by step, following the included instructions
Use the titration syringe to carefully dose the indicator until the color change signals the magnesium level
Compare results with the provided chart to determine exact magnesium concentration
Record and adjust supplementation as needed using products such as Red Sea Foundation C (Magnesium)
Measures 1,000–1,800 ppm
Accuracy: ±15 ppm
100 Tests Kit – Includes reagents, glass vial, titration syringe, and full instructions
Optimal Range: Maintain magnesium levels between 1,280–1,350 ppm for reef aquariums
Consistency is Key: Test weekly or more often in heavily stocked SPS tanks where mineral consumption is higher
Balanced Foundation: Use alongside Red Sea Calcium Pro and Alkalinity Pro Test Kits for complete monitoring of reef-building parameters
Part of RCP: Essential for aquarists following the Red Sea Reef Care Program to ensure stable and balanced water chemistry
Adjust with Care: If magnesium levels are low, supplement gradually to avoid sudden shifts that may stress corals
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