Seachem Reef Advantage Magnesium 1.2kg – Concentrated Reef Supplement and Thermometers 100% all-natural water conditioner

100% all-natural water conditioner

this unit ensures reliable performance and compatibility with your Red Sea ReefLED lights

it delivers stunning coral colour and growth in a minimalist design

Removes phosphate instantly

Seachem Reef Advantage Magnesium 1.2kg – Concentrated Reef Supplement and Thermometers 100% all-natural water conditionerSeachem Reef Advantage Magnesium 1. 2kg is a highly concentrated dry magnesium supplement (80,000 ppm) designed to restore and maintain correct magnesium levels in reef aquariums while preserving natural seawater ionic balance. Its optimised blend of magnesium, chloride, and sulfate salts corrects magnesium depletion without introducing unwanted contaminants. Unlike liquid magnesium products, Reef Advantage Magnesium contains no ammonia, ensuring