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The Salifert Freshwater GH Test Kit accurately measures the general hardness (GH) of freshwater aquariums. GH represents the concentration of calcium and magnesium ions—essential minerals that influence fish health, osmoregulation, and plant growth. Maintaining the correct GH ensures a stable environment and supports vibrant, healthy aquatic life.
Unlike simple dip strips, the Salifert GH Test Kit provides accurate, laboratory-grade results, making it easier to detect even small changes in hardness. As a result, aquarists can tailor water conditions to suit specific fish species and plants. Furthermore, the sharp colour transition and straightforward testing process make it a dependable choice for maintaining long-term aquarium health.

