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The Dennerle Colour-Gravel is a very water-neutral and CO2-resistant gravel. It is also free of pollutants and hardness. The substrate has a grain size of 1 - 2 mm and is available in orange or violet. The grains are rounded so as not to harm fish and invertebrates.
Dennerle has been operating in Vinnigen since its foundation in 1966 and, after more than 50 years of company history, the building blocks Dennerle relies on is experience. The philosophy behind Dennerle is to create a small and tangible, intact piece of nature, in harmony with the natural environment. That is why sustainability is a company-wide concept and is implemented at every possible point. In order to achieve an ecologically balanced aquarium, Dennerle relies on a system that is based on 5 pillars. Animals, plants, water, substrate and lighting. Dennerle offers the optimum equipment to bring this complex, but not complicated system into harmony.