Calcium

Calcium is one of the two most important water parameters for growing coral—the other being alkalinity. Without the proper amount of calcium in your reef aquarium, it can be hard for stony corals to form their hard calcium carbonate-based skeletons. We recommend keeping the calcium level in your saltwater aquarium between 380 and 450 ppm, using a calcium test kit to ensure that your dosing regimen is adding the proper amount of calcium without under or overdosing.
Loading...
Set Descending Direction

22 Items

  1. RedSea Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg)
    Red Sea
    RedSea Reef Foundation Pro Multi Test Kit (Ca, Alk, Mg)
    $74.99

    $74.99
  2. RedSea Calcium Pro Test Kit
    Red Sea
    RedSea Calcium Pro Test Kit
    $41.99

    $41.99
  3. Test Pro Pack (Ca, KH, Mg)
    Aquaforest
    Test Pro Pack (Ca, KH, Mg)
    $49.99

    $49.99
  4. 5-In-1 Aquarium Test Strips (100 CT)
    API
    5-In-1 Aquarium Test Strips (100 CT)
    $24.98

    $24.98
  5. Reef Master Test Kit
    API
    Reef Master Test Kit
    $35.98

    $35.98
  6. AF Calcium Test Kit
    Aquaforest
    AF Calcium Test Kit
    $19.79

    $19.79
  7. Calcium Colorimeter HI758 Hanna Checker - Marine Water
    Hanna Instruments
    Calcium Colorimeter HI758 Hanna Checker - Marine Water
    $64.95

    $64.95
  8. Trident - Marine Aquarium Water Analyzer
    Neptune Systems
    Trident - Marine Aquarium Water Analyzer
    $674.99

    $674.99
  9. ATI ICP-OES Water Analysis
    ATI
    ATI ICP-OES Water Analysis
    $44.95

    $44.95
  10. Saltwater Calcium Test Kit
    API
    Saltwater Calcium Test Kit
    $13.98

    $13.98
  11. RedSea Calcium Pro Reagent Refill Kit
    Red Sea
    RedSea Calcium Pro Reagent Refill Kit
    $24.99

    $24.99
  12. HI758-26 Calcium Checker Reagents - Marine Water
    Hanna Instruments
    HI758-26 Calcium Checker Reagents - Marine Water
    $28.00

    $28.00
  13. HI758-11 Marine Calcium Calibration Check Set for HI758 Checker
    Hanna Instruments
    HI758-11 Marine Calcium Calibration Check Set for HI758 Checker
    $21.00

    $21.00