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KOIPON Härte-Plus
Made in Germany Made in Germany
KOIPON Härte-Plus
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KOIPON Härte-Plus

  • Optimal biological equilibrium in the pond
  • Reduces toxic ammonia
  • Suitable for all pond types
from 25,00 EUR
25,00 EUR per kg
19 % VAT incl.excl. Shipping costs
Free shipping (DE only) from 50 €
Shipping time: 3-4 days with DHL

Product no.:

Products description - KOIPON Härte-Plus

Increase carbonate hardness in the pond - with Härte-Plus of KOIPON

Why is carbonate hardness so important? A carbonate hardness of over 5° ensures more stable pH values in the pond. If there is less carbonate hardness, the pH will fluctuate too much within 24 hours. This increases the toxic ammonia content in the pond for the fish. The higher the pH value, the more ammonia - every day! So check the carbonate hardness and increase it in time with KOIPON Hardness-Plus.


1kg to 10m³ increases the carbonate hardness by 2°dH. Application recommended in spring and autumn and if required, when the carbonate hardness (KH value) has fallen below 5° dH.

Weigh Koitec Härte-Plus and spread over the pond. UV lamps do not need to be switched off. Overdosage unproblematic.

How do I correct the KH value in my pond? Emma C.
The carbonate hardness in the pond can be easily hardened with our KOIPON Hardness-Plus.
Can I also use Härte-Plus in my natural pond? Annika V.
Yes it is suitable for all pond types.

Videos - KOIPON Härte-Plus

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