API General Hardness Test – Fresh ^58

Ensure optimal water conditions in your freshwater aquarium with this reliable GH & KH Test Kit. Specially designed to test tap water and freshwater aquariums, it accurately measures General Hardness (GH) — the concentration of dissolved calcium and magnesium — and Carbonate Hardness (KH), also known as alkalinity, which measures dissolved carbonate and bicarbonate levels.

Maintaining proper GH and KH levels is essential for fish health, stable pH, and recreating natural aquatic environments.

Key Features

• Suitable for tap water and freshwater aquariums

• Measures General Hardness (GH) and Carbonate Hardness (KH)

• Detects potential fish stress caused by rapid pH shifts

• Helps maintain stable water chemistry

• Supports recreating natural fish habitats

• Includes 2 easy-to-use liquid reagent bottles

• Accurate and dependable results

Why Test GH & KH?

Balanced hardness levels are crucial for fish wellbeing. Proper GH supports healthy growth and biological functions, while stable KH prevents sudden pH fluctuations that can stress fish. Regular testing helps you create a stable, natural, and healthy aquarium environment.