Toxic elements such as chlorine chloramines arsenic cyanide copper and other heavy metals may harm aquarium inhabitants. ReeFlowers Effective Conditioner eliminates these toxic elements in water creating a safer environment for fish and aquatic animals. It can be used for new water preparations treating tap water cleaning water after medical treatments and helping to reduce stress or acclimatise new fish. It is recommended that 2ml is added for every 100 liters of water for an average loaded aquarium.This should be increased to 10ml for every 100 liters of tap water for new water preparations. It is not recommended to use tap water for reef aquariums. 2ml of solution is adequate for 100 liters of R/O or drinking water.The amount can be increased to 20ml for every 100 liters in case of emergencies such as toxic contaminations or when medical treatments have been administered.