Mars Fishcare offers API Aqua Essential, an all-in-one concentrated aquarium water conditioner. In an independent research study, the company learned that all-in-one treatments are seen as a positive attribute to water treatments because fish owners view routine maintenance as a challenging part of their water care routine. In addition, fish owners are increasingly seeking highly concentrated formulas to treat their aquariums to help stretch a dollar. The product answers both of these demands and is good for use in both freshwater and saltwater aquariums. The water conditioner not only treats tap water by removing chlorine, chloramines and heavy metals, but also instantly detoxifies ammonia, nitrite and nitrates.