Sealutions Magnesium-Solution

Used to cover an increased magnesium requirement with immediate effect!

Use the Sealutions - magnesium solution to immediately eliminate a lack in this area.

General information

The aimed (natural) magnesium content of salt water is approx. 1,350 (1,200 - 1,400) mg/l.
Magnesium is necessary for the ion balance and binds the silica in the water.

Especially coralline red algae and gorgonias have both an increased need for magnesium and an increased magnesium consumption, but also stone corals. Sponges, sea urchins, crayfish, mussels and snails use tiny parts of magnesium for their skeletons.

Possible consequences of a low magnesium content

  • Stone corals and coralline red algae suffer from disturbances of growth
  • Echinoderms show an insufficient skeleton and crayfish moulting problems


The difference between the total hardness (Ca + Mg) and the calcium content displays the current magnesium content.
Thereby 1° dH total hardness equals 0.179 mmol/l alkaline earth ions or converted 4.35 mg/l Mg or 7.17 mg/l Ca.


10 ml / 10 l water increase the magnesium content by 50 mg/l.


50 g/l magnesium (a mixture of magnesium chloride/magnesium sulphate).

Thereby, the chloride/sulphate proportion equals the natural sea water, so that its use will not change the proportion in the tank.
We exclusively use salt in purest quality and higher.

Does not contain chelating agents!

0 of 0 reviews

Leave a review!

Share your experiences with other customers.


Metering valve with venting for canisters
With vent for 3 and 5 litre canisters

1 ml Dispenser pump
For measuring fertilizer or adding water treatment

Programmable single-channel dispenser pump SD-01M
Programmable single-channel dispenser pump SD-01M (peristaltic pump) / 1 - 99 ml per dosing pulse / digital display

20 ml Dispensing Beaker for Screwing
Plain dispensing system (capacity max. 20 ml) for measuring the necessary amount of fertilizer or adding water treatment.

30 ml Canister pump
Dosing pump for 3 and 5 litre canisters


Similar Products

Sealutions TE-Solution
To cover an increased trace element requirement in marine water aquaria

Variants from €8.95*
Sealutions Strontium-Solution
For coral tanks to cover an increased Strontium requirement

Variants from €8.95*
Sealutions Iodine-Solution
To cover an increased iodine requirement with immediate effect!

Variants from €8.95*

Enquiry form

Send us an e-mail. We look forward to hearing from you.

Request form
Fields marked with asterisks (*) are required.
Thank you for your enquiry. We have received your enquiry and will get in touch with you as soon as possible.