Size: 1 kg
Sale price$11.79


  • High-purity natural mineral that may be used in traditional calcium reactors or blended in to pre-existing aquarium substrate to gradually increase and maintain the calcium concentration and alkalinity in marine aquaria.
  • Strong source of calcium, the most abundant cation by percent mass in aragonite, the mineral secreted by reef-building organisms to form skeletal material.
  • Through dissolution, provides calcium, magnesium, strontium, potassium, and carbonates. Aids in increasing alkalinity to stabilize pH and encourage rapid biogenic aragonite formation.
  • Optimal average particle size for use in media reactors and calcium reactors.
  • Free of chloride and sulfate.
  • Made in the USA.

CoraLazarus Instructions

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