JBL Biotopol is a water purifier for fish, turtles and invertebrates in freshwater. If possible, these should feel as comfortable in the aquarium as in nature.JBL Biotopol processes the aquarium water in a biotope-appropriate manner and thus protects the aquarium inhabitants. Clean aquarium water means optimal water quality. The aquarium water should be reprocessed when setting up new water, changing part of the water and after using medication. Tap water is also aggressive and contains heavy metals such as copper, zinc and lead. To make this water suitable for fish, it must not be present, as well as chlorine or chloramine.Special water purifiers neutralise these substances and treat the aquarium water accordingly. JB Biotopol protects the mucous membranes, gills, skin and fins thanks to aloe vera. Aloe vera continues to protect and strengthen the fish from stress, as is the case when moving or changing water. A vitamin B complex also reduces the risk of getting sick.Chelators contain the heavy metals, these aggressive substances are automatically removed the next time the partial water is changed. JBL Biotopol converts chlorine into harmless chloride and neutralises dangerous chloramine.Hazardous pollutants are neutralised and natural substances are added. Water purifiers should always be used one hour before bacterial starters are used. Thanks to the measuring cup scale, which is located on the inside of the lid, correct dosing is child’s play.