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Concentrated reef builder for coralline algae, corals, clams and other marine invertebrates. Provides calcium, strontium, magnesium, and potassium in the same ratios in which they naturally occur in aragonite. Strong source of carbonates. Increases alkalinity to help stabilize pH. Free of phosphate, silicate, and organic material. May be used as an inexpensive alternative to automated calcium reactor systems. Made in the USA.
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$17.29
