Concentrated magnesium formula: Enables precise correction of low magnesium levels in reef tanks
No additional trace ions: Prevents disturbance of aquarium chemical balance
Safe for occasional use: Ideal for when magnesium drops below natural seawater range
Easy dosing instructions: 1 ml increases magnesium by 10 ppm per US gallon
Long shelf life: 24 months with proper storage
Summarized by Shop
Magnesium¹²+ is a concentrated magnesium supplement formulated for reef aquariums. It is intended for occasional correction when magnesium levels fall below the natural seawater range (1,280–1,350 ppm). Unlike daily maintenance formulas, Magnesium 12+ delivers magnesium alone, without additional trace ions, making it ideal for safely rais
Form
Liquid
Magnesium content
100% USP grade magnesium salts
Dosage
1 ml per 1 US gallon (3.8 L) increases magnesium by 10 ppm
Maximum daily increase
50–100 ppm per day
Shelf life
24 months
Storage
Store tightly sealed in a cool, shaded location (25°C/77°F), protect from direct light
