Quick GH booster for ponds! Our country is increasingly experiencing heavy rainfall, which quickly reduces the water hardness of your pond. Minerals important for the pond are lacking in rainwater, but a boost of GH levels quickly restores water quality. Make sure you always have a bucket of GH Booster to hand and use it after every downpour. An amount of 500 ml is sufficient to raise the GH value of 4,000 litres of pond water by 4 °DH. First dissolve the required amount of GH Booster in a generous amount of water and then distribute it over the pond. Wear gloves and wash your hands thoroughly after handling this product. Soft pond water with a GH value (also called total hardness, expressed in DH) lower than GH 5 °DH can easily become acidic. Continuous rainfall intensifies this process. Especially in autumn and winter, fish mortality can result. The growth and development of oxygen plants (such as waterweed, hornwort and pondweed) are also inhibited if the GH value is too low. GH Booster quickly increases the GH value of the pond water. A healthy and stable pond environment has a total hardness of GH 8 to 12 °DH. Regular control (4-5 times a year) of the GH value is therefore desirable.