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Kalkwasser

Kalkwasser

German for "limewater," it is a concentrated solution of calcium hydroxide in water with a high pH of 12.00+ used to supplement calcium and maintain high pH levels in aquariums.  Kalkwasser is calcium hydroxide dissolved in water so it is very straightforward to use.

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  • Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell

    Kalk+2 Kalkwasser Supplement w/Trace (450 gm - 1 lb) - Brightwell

    Brightwell Aquatics

    $19.99
    Overview  • Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc...
  • Kalkwasser Powder Calcium Hydroxide (3.5 lbs) - ESV

    Kalkwasser Powder Calcium Hydroxide (3.5 lbs) - ESV

    ESV

    $27.99
    Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels. Kalkwasser solutions maintain calcium directly and carbonate alkalinity indirectly. However, its capacity to...
  • Kalk+2 Kalkwasser Supplement w/Trace (225 gm - 1/2 lb) - Brightwell

    Kalk+2 Kalkwasser Supplement w/Trace (225 gm - 1/2 lb) - Brightwell

    Brightwell Aquatics

    $10.99
    Overview  • Contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc...
  • Kalkwasser Dry Powder Mix (500 gm - 1.1 lbs) - Two Little Fishies

    Kalkwasser Dry Powder Mix (500 gm - 1.1 lbs) - Two Little Fishies

    Two Little Fishies

    $15.26
    Calcium Supplement Mix. Our pure source of Calcium Hydroxide makes the ideal solution for replenishing calcium and maintaining alkalinity, for corals, clams, and calcareous algae that build skeletons of calcium carbonate. It also helps maintain pH,...
  • Reef Kalkwasser Powder (1 kg - 2.2 lbs) - Seachem

    Reef Kalkwasser Powder (1 kg - 2.2 lbs) - Seachem

    Seachem

    $28.09
    Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels...
  • Reef Kalkwasser Powder (500 gm - 1.1 lbs) - Seachem

    Reef Kalkwasser Powder (500 gm - 1.1 lbs) - Seachem

    Seachem

    $15.62
    Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels...
  • Reef Kalkwasser Powder (250 gm - 0.5 lbs) - Seachem

    Reef Kalkwasser Powder (250 gm - 0.5 lbs) - Seachem

    Seachem

    $12.45
    Reef Kalkwasser™ is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. Calcium hydroxide is used to prepare limewater (kalkwasser) solutions that will maintain calcium concentrations at natural seawater levels...
  • Bulk Pharma Kalkwasser (38 Pounds) - Bulk Reef Supply

    Bulk Pharma Kalkwasser (38 Pounds) - Bulk Reef Supply

    Bulk Reef Supply

    $269.99
    Ultra-pure Kalkwasser for Reef Tanks! BRS Pharma Kalkwasser is not your typical calcium hydroxide. It is made from an ultra-pure source that contains extremely low amounts of aluminum and compared to traditional kalkwasser you can actually see the...