Coral Essentials Magnesium Up 1.2Kg
This 1.2kg bucket contains both Magnesium Chloride from the Dead Sea and Magnesium Sulphate, designed for marine reef systems with large tanks. It provides a cost-effective magnesium dosing solution.
Using the included recipe, you can prepare a solution at 12,500ppm to match the magnesium concentration of the Coral Essentials Magnesium + Trace pre-mix liquid solution. The full bucket yields 10L of solution at this concentration.
It is also compatible with the familiar Randy’s mix. Detailed instructions for preparation are printed on the bucket itself.
To complete the dosing, add Potassium to include essential trace elements.
Usage Notes
| Component | Quantity | Concentration |
|---|---|---|
| Magnesium Chloride (Dead Sea) | Part of mix | Integrated |
| Magnesium Sulphate | Part of mix | Integrated |
| Final Solution | 10L | 12,500ppm |
Regular monitoring of magnesium levels is recommended to assess uptake in your marine system.
FAQ
Can this product be used with the Randy’s mix?
Yes, the product is compatible with the Randy’s mix and can be used as part of your dosing regimen.
What is the concentration of the solution made from the full bucket?
The full 1.2kg bucket makes 10L of solution at 12,500ppm magnesium.
Is potassium required to use this product?
Yes, potassium should be added to complete the magnesium dosing with essential trace elements.

Dorothy Davidson –
I’ve been using this magnesium supplement for several months in my 120-gallon reef tank. The solution is easy to mix and maintains stable magnesium levels. It’s more affordable than the liquid pre-mix and works well with my existing dosing routine. I check the levels every two weeks and have seen consistent results.
Sally Berry –
The bucket is well labeled and the instructions are clear. I mixed it according to the recipe and added potassium as recommended. My tank’s magnesium levels have stabilized, and the coral coloration has improved noticeably.
Emily Gill –
Great value for large tanks. I use the full 1.2kg bucket to make 10L of solution. It’s reliable and easy to store. The magnesium concentration matches the liquid mix, so I don’t need to adjust my dosing schedule.