GH and KH in the Aquarium
Aquarists seek to provide a healthy aquarium environment by duplicating the water conditions of the natural habitats of their fish. Tap water rarely provides the water conditions necessary to maintain an optimal aquarium. Some tap water supplies have a very low KH level (below 3 °dKH). This type of water has very little pH buffering capacity and can contribute to wide pH swings in the aquarium. When water evaporates from the aquarium, it leaves behind hardness ions. Topping off with tap water simply adds more minerals to the aquarium, resulting in a steady increase in GH. It is therefore necessary to test the GH and KH frequently to monitor water quality and prevent stressful conditions from occurring. Use the table below to create the ideal water hardness levels for your aquarium fish. When keeping a community aquarium with a variety of tropical fish, adjust the GH and KH to 3° - 6° (50 - 100 ppm).
GH & KH RANGE - Aquarium Life
Dimensions: 20(L) x 10(W) x 10(H) cm
Manufacturer Twinstar has shifted up a gear with the S-series and developed a light, that virtually perfectly meets the demands in lighting systems in aquaristics. This model series is first and foremost more powerful. The composition of the RGB LEDs was designed differently.
The aquarium plants remain healthy and colorful. The Twinstar S Line optimizes and improves the environment for the growth of aquarium plants and makes the colors of the fish appear brighter.