Salifert Test Kit Magnesium

Salifert Magnesium (Mg) Profi Test Kit

The Salifert Magnesium Test Kit is an essential professional-grade testing solution for reef aquarium enthusiasts who understand the critical role magnesium plays in maintaining calcium and alkalinity balance. With 50 tests per kit, this highly accurate tool ensures your reef chemistry stays in the optimal range for coral growth and health.

Why Test for Magnesium?

Magnesium is one of the most important major elements in reef aquariums, working hand-in-hand with calcium and alkalinity to maintain proper water chemistry. Magnesium prevents calcium and carbonate from precipitating out of solution, allowing you to maintain higher calcium and alkalinity levels. Without adequate magnesium (1250-1350 mg/L), your calcium and alkalinity will be difficult to maintain, leading to stunted coral growth and poor skeletal development.

Key Features:

• Exceptional Accuracy: Measures magnesium levels with precision in the critical range for reef aquariums (1000-1500+ mg/L)
• 50 Tests per Kit: Provides excellent value with approximately 50 individual tests for comprehensive monitoring
• Titration Method: Uses reliable titration chemistry for highly accurate results
• Easy to Read: Clear color change endpoint makes determining results straightforward
• Professional Grade: The gold standard used by reef professionals and advanced hobbyists worldwide
• Quick Testing: Complete a test in just a few minutes
• Reef Safe: All reagents are formulated to be safe for your aquarium

What's Included:

• Mg test reagent bottles (Mg-1, Mg-2, Mg-3)
• Glass test vial with cap
• Precision syringe for accurate water sampling
• Measuring spoon for powder reagent
• Detailed color comparison chart
• Comprehensive instruction manual with troubleshooting guide

Testing Range & Resolution:

Accurately measures magnesium concentrations from approximately 1000 mg/L to over 1500 mg/L, with resolution of about 30 mg/L - perfect for maintaining the ideal reef range.

Recommended Testing Frequency:

• New reef systems: Weekly during initial setup and stabilization
• SPS-dominated tanks: Weekly to bi-weekly (magnesium is critical for SPS growth)
• Mixed reef systems: Bi-weekly to monthly
• When dosing calcium and alkalinity supplements: Test weekly to ensure proper balance
• After major water changes: Test to verify levels
• When experiencing difficulty maintaining calcium/alkalinity: Test immediately

Ideal Magnesium Levels:

• Natural Seawater: ~1280 mg/L
• Reef Aquariums: 1250-1350 mg/L (optimal range)
• SPS-Dominated Tanks: 1300-1400 mg/L (higher end supports calcium uptake)
• Minimum Safe Level: Not below 1200 mg/L

The Magnesium-Calcium-Alkalinity Relationship:

Magnesium acts as a buffer that prevents calcium and carbonate ions from combining and precipitating. A proper magnesium level (typically 3x the calcium concentration) allows you to maintain higher calcium and alkalinity levels, which are essential for coral calcification and growth. If magnesium drops too low, you'll find it impossible to raise or maintain calcium and alkalinity, no matter how much you dose.

Why Choose Salifert?

Salifert has been the industry leader in aquarium water testing for over 25 years. The Magnesium Profi Test Kit is manufactured in the Netherlands under strict quality control standards. Unlike many magnesium tests that can be difficult to read or inaccurate, Salifert's unique titration method provides reliable, repeatable results that reef keepers depend on for maintaining the delicate balance of reef chemistry.

Master your reef chemistry with precise magnesium monitoring using the Salifert Magnesium Profi Test Kit - the professional's choice for maintaining the foundation of healthy coral growth.