Nature at Home – Home for Fish and Plants. Fish need to feel as much at home in the aquarium as in the wild. Transform your aquarium water into biotope-like water to protect your aquarium dwellers with natural substances. During water changes, when setting up and for strengthening fish after fish diseases. Tap water is full of harmful substances for fish. Harmless for humans - harmful to fish. Tap water contains heavy metals, such as copper, zinc and lead. To make the water suitable for fish it must be free of heavy metals, chlorine and chloramine. The water is made suitable for fish by neutralising these substances using dedicated water conditioners. Advantages of the JBL water conditioners: pollutants in the tap water are neutralised, nutrients are added, the mucous membranes, gills, skin and fins are protected with aloe vera, Aloe vera builds resistance to heavy metals, brings protection from stress and reduces the risk of disease with its vitamin B complex, chelators enclose heavy metals and aggressive substances are removed during the next partial water change. Transforms chlorine into harmless chloride, dangerous chlorine and chloramine are neutralised. In some countries, e.g. in ASIA, USA etc. tap water contains especially high levels of chlorine. For this purpose JBL Biotopol Plus has been developed. The „normal“JBL Biotopol is sufficient for normal chlorine levels as in Europe.