Removes noxious substances like copper and other heavy metals, chemicals, ammonia, pesticides, pharmaceutical residue, chlorine (in freshwater) etc. from water,serves as plant nutrient deposit - plant roots are provided with nutrients for a longer period of time,improves the biological acitiviy of the substrate and filter,shortens the time new tanks need to cycle,prevents diseases and algae proliferation,removes noxious bacteria, diseases like skin infections, fin rot etc. heal faster,reduces stress and losses during transport in fish and shrimp,adds minerals and trace elements,improves the appetite of your tank inhabitants, and intensifies their colours,improves the vitality of your tank inhabitants, offspring grows up more healthily,improves and stabilises water quality,removes odors,makes the water crystal clear,100% natural.