Reef Secrets

RSA Magnesium Supplement Part A 1kg

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  • Regular price $9.90
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Use Reef Secrets dry supplement range to make your own macro element supplements (Calcium, Magnesium and Alk). A lot cheaper than buying traditional type liquid supplements. Great for large tanks with heavy uptake of elements.


750g into 1 Gallon of RO water mixed with 1.25kg Magnesium Part B will make a solution containing 47,000ppm Magnesium.