$9.22 cheaper than the new price!!
Management number | 203122010 | Release Date | 2025/10/12 | List Price | $13.82 | Model Number | 203122010 | ||
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API Marine Magnesium Raises Magnesium Levels in Reef Aquariums raises and restores magnesium levels in your reef aquarium, and should be used whenever a magnesium deficiency is present in your water. The magnesium level of a reef aquarium should be between 1,250 to 1,450 ppm. Use API Marine Magnesium when water tests show a magnesium level below 1,250 ppm mg/L in your reef aquarium. Dose according to directions on the product label. Treats up to 948 US gallons of salt water.
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