Dennerle offers products for the aquarist that can do more than merely fight symptoms. We likewise ensure that even at the production stage, natural resources are used sparingly. But it should also be possible to use the products themselves in an environmentally sustainable way – for example by having an above-average lifespan (e.g. Trocal) or by using concentrates to reduce packaging waste (e.g. water care). We design functioning, coordinated products which are oriented towards maintaining the natural cycle and are harmless to the environment, people and animals. In doing so we make it possible to experience a bit of nature at home in a sustainable way.