Advanced Calcium, Magnesium, & Strontium Kalkwasser Supplement for all Marine Fish & Reef Aquaria


  • Kalk+2 is an advanced Kalkwasser powdered supplement enhanced to include not only the traditional calcium hydroxide, but strontium hydroxide and magnesium hydroxide also.
  • 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.
  • Provides temporary alkalinity and helps maintain pH within the desired range when used
    as directed.
  • Adds no conservative elements, such as chloride, to the aquarium.
  • Improves upon the industry-standard powdered calcium supplement over the past three
  • Formulated by a marine scientist.
  • For complete information, click the 'Technical' button at the top right.



100 g | 225 g | 450 g | 1.8 kg | 9 kg

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