DRAK Duradrakon GH-Plus

DRAK Duradrakon GH-Plus

  • Re-mineralising salt mixture for increasing total hardness
  • Particularly recommended for shrimp, crayfish and Malawi cichlid tanks
  • For RO water and rainwater
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Hardening Salt Mixture for the specific increase of the total hardness in all tank types. Especially recommended for shrimp, crayfish and Malawi tanks..


1.2 g of Duradrakon TH-Plus per 50 l water in order to increase TH by 1 °dH
Very economical. Dissolves easily and without clouding.

Do not directly mix with Duradrakon CH-Plus preparations, but separated from it and resolve it single as diluted as possible. This prevents the precipitation of insoluble calcium and magnesium carbonates.


35.8 % Chloride, 17.0 % Sulfate, 16.2 % Calcium, 6.4 % Magnesium, 1.4 % Potassium, 0.5 % Hydrogencarbonate, 0.1 % trace elements



Aquarium plant fertilizers, water conditioners, remineralizing salts and supplies for marine aquaristics made by a specialist. Dr. Andreas Kremser (DRAK) offers a wide product range for planted aquarium enthusiasts and aquascpapes. Besides micronutrient fertilizers like his Ferrdrakon complete iron fertilizer, he offers macronutrients as well as micronutrient fertilizers for special purposes like the KramerDrak - complete iron fertilizer for strongly lit tanks. 

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Ragnar Ö.
Not perfect
6th January 2021
DRAK - Duradrakon GH-Plus - 1.000 g
DRAK - Duradrakon GH-Plus - 1.000 g

Does make the water harder, and dissolves OK. But makes the water smell of chlorine. I would recommend trying other brands.