Mg Plus

Grouped product items
250 mL Mg Plus

SKU: 251734

In stock

$6.29 $8.99

- +
2000 mL Mg Plus

SKU: 251735

In stock

$24.49 $34.99

- +

Concentrated liquid magnesium to help increase your tanks Mg level without increasing any other elements concentration.

Two Sizes Available:

  • 200 mL
  • 2000 mL


Magnesium is an essential part of coral development and water chemistry. Magnesium has multiple roles in the reef tank, most notably its ability to let calcium and alkalinity become supersaturated and keeping them steady and balanced. MG Plus is perfect for smaller tanks that do not require much magnesium or larger tanks that require big swings without changing any other parameters.


Mg Plus can be used with:

  • SPS corals
  • LPS Corals
  • Soft Corals
  • Clams



2 tsp of solution increases the magnesium level in 27 gallons of water by 5 ppm.

It is suggested to start with a dose of 5mL per 27 gallons of aquarium water daily. After each dose, test your aquarium's magnesium level and adjust dosage as necessary for your systems requirements.


Contains: Magnesium, Chloride, Sulfate


pdf icon Aquaforest Systems Guide

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