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Seachem Reef Advantage Magnesium – Balanced Magnesium Supplement for Marine Aquariums (600g)
Seachem Reef Advantage Magnesium is a concentrated, ionically balanced blend of magnesium, chloride, and sulfate salts formulated to safely restore magnesium levels in reef aquariums. Magnesium is essential for maintaining calcium and alkalinity balance, and its depletion can lead to unstable pH and poor coral growth.
This dry formula contains no ammonia—unlike many liquid magnesium supplements—and is ideal for use in systems that utilize Kaltwasser or carbonate additives, which can precipitate magnesium and make it biologically unavailable.
Key Features:
- Concentrated at 80,000 ppm – efficient and economical
- Restores magnesium without disrupting ionic balance
- Contains no ammonia – safer for sensitive reef systems
- Supports coral growth, pH stability, and calcium retention
- Dry format – longer shelf life and no added water weight
Product Specifications:
- Brand: Seachem
- Weight: 600g
- Form: Powder
- SKU: SEA3344
- Country of Origin: United States
Directions for Use:
- Use 5g (1 level teaspoon) per 80 L (20 US gallons) twice weekly
- Dissolve in at least 250 mL of freshwater before dosing
- Each 5g per 80 L raises magnesium by ~5 mg/L
- Do not exceed 25g per 80 L per day
- Target magnesium range: 1,200–1,350 mg/L
- Use Seachem Reef Status™ Magnesium to monitor levels
Pro Tips:
- Do not mix directly with carbonate supplements—dose at least 30 minutes apart
- Use a digital spoon scale for precise dosing
- Set up a drip system for gradual magnesium correction
- Product Description
-
Details
Seachem Reef Advantage Magnesium – Balanced Magnesium Supplement for Marine Aquariums (600g)
Seachem Reef Advantage Magnesium is a concentrated, ionically balanced blend of magnesium, chloride, and sulfate salts formulated to safely restore magnesium levels in reef aquariums. Magnesium is essential for maintaining calcium and alkalinity balance, and its depletion can lead to unstable pH and poor coral growth.
This dry formula contains no ammonia—unlike many liquid magnesium supplements—and is ideal for use in systems that utilize Kaltwasser or carbonate additives, which can precipitate magnesium and make it biologically unavailable.
Key Features:
- Concentrated at 80,000 ppm – efficient and economical
- Restores magnesium without disrupting ionic balance
- Contains no ammonia – safer for sensitive reef systems
- Supports coral growth, pH stability, and calcium retention
- Dry format – longer shelf life and no added water weight
Product Specifications:
- Brand: Seachem
- Weight: 600g
- Form: Powder
- SKU: SEA3344
- Country of Origin: United States
Directions for Use:
- Use 5g (1 level teaspoon) per 80 L (20 US gallons) twice weekly
- Dissolve in at least 250 mL of freshwater before dosing
- Each 5g per 80 L raises magnesium by ~5 mg/L
- Do not exceed 25g per 80 L per day
- Target magnesium range: 1,200–1,350 mg/L
- Use Seachem Reef Status™ Magnesium to monitor levels
Pro Tips:
- Do not mix directly with carbonate supplements—dose at least 30 minutes apart
- Use a digital spoon scale for precise dosing
- Set up a drip system for gradual magnesium correction
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