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Details

All About the Product

Product description

Colombo KH Test – Precise carbonate hardness test for stable pond water

The Colombo KH Test is a reliable drop test for the accurate determination of carbonate hardness (KH) in your pond water. A stable KH is crucial for a constant pH level and a healthy pond environment. With this test, you can identify fluctuations early and ensure permanently stable water parameters in your koi or garden pond.

One pack is sufficient for approx. 40 tests.

 

Who is the Colombo KH Test suitable for?

🐠 For koi and garden pond owners
🌿 For fluctuating pH levels
💧 For regular monitoring of water hardness

 

⭐️ Benefits of the Colombo KH Test
  • Precision – Exact measurement of carbonate hardness (KH)
  • Stability – Supports a stable pH level
  • Simplicity – Quick and easy drop test
  • Control – Early detection of critical water parameters
  • Yield – Approx. 40 tests per pack

    Technical specifications
    At a glance

    Drop test for measuring carbonate hardness (KH), sufficient for approx. 40 applications.

    Application and Dosage
    Application
    Regularly check the carbonate hardness in the pond, especially during pH fluctuations or after water changes.
    Dosage
    Take a water sample from the pond using the included test tube. Add the test reagent drop by drop according to the enclosed instructions and shake the test tube after each drop. The number of drops required until the color of the solution changes corresponds to the KH value in °dH. To ensure stable water values, the carbonate hardness should be checked regularly. An optimal KH value is between 6 and 10 °dH. If the value is too low, it can be adjusted using special KH stabilizers. Regular use of this test helps to detect fluctuations early and keep the water quality in the pond at an optimal level.

    What buyers say

    What customers say about Koi-Area

    4,9 in the entire shop from 281 reviews
    Hand feeding koi by the pond edge

    Before you order

    Frequently Asked Questions

    When will it arrive?

    Ships from Germany, usually within 2 to 4 business days. Individual items are reproduced upon order – in that case, it takes about 10 to 14 business days. The estimated delivery date is shown at the top of the checkout area.

    How much is shipping?

    Within Germany €5.90 up to 30.9 kg, tiered above that. To Austria, Belgium, Luxembourg and the Netherlands from €7.50, to Denmark from €13.90 – each tiered by weight.

    Can I pick it up from you?

    Yes, free in Mönchengladbach, Tomphecke 25. Monday, Wednesday, and Friday from 10 am to 5 pm. Just add it to your cart and select pickup at checkout.

    I'm not sure if this is suitable for my pond.

    Then call us before you order: +49 152 27783926, Monday to Friday from 9 am to 3 pm. You’ll speak with someone who keeps koi and builds pond systems themselves. If a product isn’t right for your setup, we’ll tell you.

    Can I return it if it doesn't fit after all?

    The statutory 14-day right of withdrawal applies to equipment, accessories, and unopened goods. For hygiene reasons, we cannot accept returns of opened food and grooming products.

    How do I pay?

    PayPal, Klarna, Apple Pay, Shop Pay, credit card and the other payment methods you see at checkout. You can also pay in person when picking up your order.

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