Microbe-Lift Aqua-Pure is a specially formulated blend of beneficial bacterial cultures and 100% natural adsorbent media - these biological agents providing clean water and improved water quality in any marine or freshwater aquarium. Microbe-Lift Aqua-Pure removes nitrates over the long term, breaks down organic waste, neutralises heavy metals, prevents algae problems, enables crystal clear water and protects your aquarium inhabitants.Microbe-Lift Aqua-Pure+ contains beneficial living bacterial cultures & 100% natural adsorption media+ creates crystal-clear water+ ensures the long-term removal of ammonium/nitrite+ neutralises heavy metals+ prevents algae problems+ improves the water quality+ protects your aquarium populationDosage Microbe-Lift Aqua-PureCare dosage: add 20 ml per 100 litres of water once a week.Dosage in case of problems: add 10 ml per 100 litres of water once a day for 1 week.