API Hardness Test Kit GH/KH Freshwater The API® GH & KH Hardness Test Kit accurately measures general hardness (GH) and carbonate hardness (KH) in freshwater aquariums, helping you replicate your fish’s natural environment. Maintaining proper GH and KH levels is essential for reducing stress, supporting vibrant health, and ensuring stable water chemistry for both fish and plants. This easy-to-use kit provides quick, reliable results, allowing you to monitor and adjust water parameters to create the ideal habitat. Regular testing helps prevent fluctuations that can harm delicate species and affect biological balance. Each kit includes two test bottles, glass test tubes, a colour comparison chart, and clear step-by-step instructions for accurate readings every time. Key Features & Benefits Tests both GH and KH: Ensures balanced water hardness for fish and plants Promotes fish health: Prevents stress by matching natural habitat conditions Accurate & reliable: Provides quick, precise water hardness readings Easy to use: Simple liquid drop test with clear colour chart results Complete kit: Includes two test solutions, glass tubes, and full instructions Ideal for freshwater aquariums: Perfect for tropical and planted tanks
