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The marine sand that gets asked for by name
ferrous sulfate
Let cool or immediately pour into mold
High-protein
Fritz Pro Aquatics Magnesium Chloride (Flake) 1lb Filtration The marine sand that getsFritzPro Magnesium Chloride is a high quality concentrated magnesium salt that is designed to replenish magnesium in captive reef systems. Monitoring and maintaining proper magnesium levels is an important part of stabilizing water chemistry values, resulting in better coral, coralline algae and invertebrate growth and health. Being the third most abundant ion in natural seawater behind sodium and chloride, magnesium is an important ion for reef
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