API gH & kH Test Kit – Test Water Hardness for Freshwater Aquariums
Product Overview
Maintaining proper general hardness (gH) and carbonate hardness (kH) is essential for a healthy freshwater aquarium. The API® gH & kH Test Kit allows you to accurately monitor both parameters, helping you replicate your fish’s natural environment and reduce stress. With easy-to-use instructions and precise results, this test kit ensures ideal water conditions for both freshwater fish and plants.
Features & Benefits
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Dual-function kit: Tests for both general hardness (gH) and carbonate hardness (kH)
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Promotes fish health by preventing stress from incorrect water hardness
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Improves water stability by helping maintain proper pH buffering with kH readings
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Supports vibrant plant growth and optimal conditions for sensitive fish species
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Easy-to-use liquid test kit with clear instructions and accurate color indicators
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Suitable for freshwater aquariums and ideal for regular weekly testing
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Includes 2 glass test tubes with secure caps, 2 test solutions & instruction guide
Product Details
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Test Parameters: gH (general hardness), kH (carbonate hardness)
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Aquarium Type: Freshwater
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Includes: 2 reagent bottles, 2 glass test tubes with snap-tight caps, instruction leaflet
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Use Frequency: Weekly or as needed
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Brand: API (Aquarium Pharmaceuticals, Inc.)
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Made in: USA
FAQ
What is KH?
Carbonate hardness (KH) helps stabilize pH in your aquarium. Low KH can lead to rapid pH shifts, while high KH generally indicates high pH levels.
What is GH?
General hardness (GH) measures calcium and magnesium levels. Soft water = low GH, while hard water = high GH.
Can I use soap to clean test tubes?
No, avoid soap. Use only water or API Safe & Easy spray to clean tubes and prevent chemical residue from entering your aquarium.
