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DUO, the simple and effective system for supplying reef aquariums


With DUO KH and DUO Calcium, the reef aquarium is supplied with alkalinity (KH) and calcium, which are essential for coral growth. This prevents ion shifting and increases the pH value, which improves the growth of hard corals. DUO does not have to be dissolved or diluted and also contains the important substancesMagnesium, strontium, potassium, rubidium, sulfate, bromide, fluoride and iodine. 


You can find more information about Oceamo DUO as well as an FAQ and dosing instructionshere.


Like all our water additives, OCEAMO DUO also undergoes strict quality control in our laboratory using ICP-MS. - Quality "made in Austria".


Price incl. VAT excl. Shipping.


Safety instructions:


  • For use in reef aquariums only!
  • Do not leave it in the reach of the children!
  • Classification according to Regulation (EC) No. 1272/2008:eye irritation 2 H319 Causes serious eye irritation.
  • See product images for hazard warning symbol.
  • P101If medical advice is needed, have product container or label at hand.
  • P102Keep out of the reach of children.
  • P264Wash thoroughly after use.
  • P280Wear eye protection/face protection.P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. If possible, remove contact lenses. Continue rinsing.
  • P337+P313If eye irritation persists: Get medical advice/attention.
  • P501Dispose of contents/container in accordance with local/regional/national/international regulations.
  • UFI number: 7600-D0D9-3009-5MUM

Oceamo DUO KH 5000 ml

1 Liter
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