API KH Carbonate Hardness Freshwater and Marine Liquid Test Kit

£6.49

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API KH Carbonate Hardness Freshwater and Marine Liquid Test Kit
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API KH Carbonate Hardness Freshwater and Marine Liquid Test Kit

API KH Carbonate Hardness Freshwater and Marine Liquid Test Kit

The API test kit measures your fresh or saltwater aquariums for carbonate hardness (KH), which is the measure of dissolved carbonate and bicarbonate ion concentrations. KH helps neutralize acids and prevents your pH from changing too rapidly, which is useful because sudden pH crashes can cause health issues in your fish. Low KH means your water has less buffering capacity and the pH swings easily. High KH means your water has the more buffering capacity and the pH level is hard to change.

The Ideal Aquarium:

Typically, freshwater aquariums should be between 4-8 dKH (or 70-140 ppm). If you need to lower the pH for animals like discus or crystal shrimp, you’ll need to decrease the KH to 0-3 dKH (or 0-50 ppm). African cichlids, on the other hand, appreciate KH higher than 10 dKH (or 180 ppm), which usually goes hand in hand with higher pH levels.

Working Towards The Ideal Aquarium:

If you want to lower pH, KH, and GH and soften your water, we recommend letting the tank acidify over time by managing minimal water changes and gradually mixing in water filtered through an RODI (reverse osmosis de-ionized) water system.

 

If you wish to raise pH, KH, and GH and harden your water you can add crushed coral sand 

 

Product Highlights
  • A liquid test kit that accurately calculates KH carbonate hardness in the water.
  • For use in both freshwater and saltwater aquariums.

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We do not ship orders internationally.

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