Continuum Aquatics Reef Basis Calcium 250ml

Continuum Aquatics

Continuum Aquatics Reef Basis Calcium 250ml


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  • a high quality, maximum strength ionic calcium solution designed to safely raise the calcium level in marine aquariums
  • providing essential calcium for increased growth rates in corals, coraline algae, crustaceans and many other marine organisms
  • It contains no acetate, gluconates, polygluconates or other unnecessary organics to pollute your aquarium
  • phosphate and silicate free
  • may be used simultaneously with Kalkwasser


Use in aquarium keeping

  • Proper control of calcium level is imperative for the health and growth of corals and many other invertebrates.
  • If the calcium concentration is too low, growth rates will suffer.
  • If it is too high, alkalinity or buffering capacity will be diminished, leading to possible instability of pH.
  • Sufficient magnesium levels are also necessary to maintain the proper balance. It is therefore recommended that the hobbyist measure and control the levels of calcium, magnesium and alkalinity on a regular basis.
  • Strontium is also required for formation of aragonite.
  • Continuum recommends that you maintain a calcium level of between 410 and 450 mg/L (ppm), an alkalinity level of 7 to 11 dKH (2.5 to 4 meq/L), and a magnesium level of 1250 to 1350 mg/L (ppm).
  • Note: Aquarists keeping SPS corals should consider keeping alkalinity at 7 to no more than 9 dKH (2.5 to 3.21 meq/L). Do not add calcium and buffering (alkalinity) products at the same time. Doing so will cause unnecessary precipitation and possible cloudiness.



  • Shake well prior to use.
  • Add 1 capful (5 ml) per 50 US-gallons (200 L) of marine aquarium water 3 to 4 times per week.
  • For best results, measure the calcium concentration and add as required to maintain the concentration between 410 and 450 mg/L.


Expert use

  • Dosing through use of a drip system is a superior method of addition.
  • Do not mix with buffers or alkalinity supplements prior to addition.
  • You may mix it with strontium, magnesium, and many other supplements.



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