Seachem Prime is a complete and concentrated conditioner for both fresh and salt water aquariums, designed to remove ammonia, chlorine, and chloramine. It effectively converts ammonia into a safe, non-toxic product that is easily removed by the filter, making it ideal for use during aquarium water cycling to regulate ammonia and nitrate levels. Prime also detoxifies nitrite and nitrate, allowing the biofilter to remove them more efficiently. It can detoxify heavy metals commonly found in tap water at typical concentrations and promotes the production and regeneration of the natural slime coating on fish, aiding their health. In cases of exceptionally high chloramine concentrations, a double dose can be safely administered. Key Features: • Suitable for both freshwater and saltwater aquariums • Removes ammonia, chlorine, and chloramine • Detoxifies nitrite and nitrate • Promotes the production of the natural slime coating Treatment: This 250ml bottle can treat up to 10000 litres. Dosage: Use 5ml for every 200 litres of new water. This dosage effectively removes approximately 1 mg per litre of ammonia, 4 mg per litre of chloramine, or 5 mg per litre of chlorine.