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Magnesium Supplement Calculator

Please note that this calculator requires your tank volume to have been entered into the volume box below. You will also need to know your current Magnesium reading and your target value.

This calculator is assuming that you are using one of the following Tank Tests Balanced Magnesium products; 3L size Balanced Magnesium, or 1L Balanced Magnesium. The dosage of these products are best dissolved into a litre or more of fresh RO water, and dripped into your system over a couple of hours where possible. Your Salinity will rise with the addidtion of this product, so check your salinity after making any larger adjustment.

More information on supplementing Magnesium; it's benefits, risks and target values, see Neil's guide to supplements, HERE

Enter your tank's volume here; Litres
Enter your current Magnesium level here; ppm
Enter your target Magnesium level here; ppm
On clicking Calculate Magnesium Supplement, the amount of supplement you require will be shown beside the button;
Grams