Pure Reef – Magnesium – Supplement


Category: SKU: N/A


Magnesium – Supplement

250ml / 500ml / 1000ml


Pure Reef Magnesium promotes many biological functions, while preventing excessive precipitation of calcium carbonate from aquarium water.


Alkalinity’s depletion from normal to unacceptable levels can take only a day or two in some reef aquaria, although it can take longer in aquaria with a lower demand for carbonate.


Low Magnesium levels in your aquarium may cause:

  • Inability to maintain adequate calcium and alkalinity levels
  • Calcium carbonate precipitation on heaters and pumps


It is recommended to maintain levels between 1250-1350 ppm in a reef aquarium.



Dosage will need to be increased or decreased according to aquarium demand. Regular water testing is required in order to determine dosage requirement.


Daily dosage:

Add 1ml to every 100L of aquarium water daily. (Can be dosed daily or weekly)


Marine Aquarium Use Only!

Keep Out of Reach of Children


Made in South Africa

Additional information


250ml, 500ml, 1L


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