Sera Magnesium Plus is a magnesium water supplement for saltwater tanks. Use Sera Magnesium Plus to aid in the production and maintenance of the calcareous skeletons and hard shells of calciferous red algae, hard and soft corals and invertebrates in your reef aquarium. The magnesium level in natural saltwater is approximately 1300 mg/ (ppm). The easy-to-dose Sera Magnesium Plus allows easy replenishment of consumed magnesium. Use the Sera magnesium-test for monitoring the exact magnesium level. Please refer to the Red Sea Reef Success Strontium guidelines for the amounts to use and the optimum frequency of use.
