Microbe-Lift Xtreme a specially formulated water conditioner for ideal use in any marine or freshwater aquarium. Microbe-Lift Xtreme makes tap water safe & suitable for fish and prevents dangerous increases in ammonium/ammonia and nitrite, removes chlorine/chloramines as well as heavy metals. It also protects the mucous membrane and gills of your fish.Microbe-Lift Xtreme+ specially developed water purifier+ makes tap water safe for all organisms in the aquarium+ prevents a dangerous increase in ammonium/ammonia & nitrite+ removes chlorine/chloramine+ removes heavy metals+ protects the mucous membranes and gills of your fish+ perfect for the start of a new aquarium and for water changesDosage Microbe-Lift XtremeAdd 10 ml per 100 litres of aquarium water.