This aquarium salt is produced by evaporating natural sea water, leaving behind the mineral content fish rely on for healthy gill function. It is intended for freshwater aquariums and fish bowls, where it helps replace electrolytes that are lost through the gills during stress, illness, or routine water changes. The salt dissolves into the water column and is added at each water change since it does not evaporate or get removed by filtration. It is commonly used when setting up a new freshwater tank, during regular maintenance, or alongside other treatments to support recovery from disease. The product contains no artificial additives or dyes and is measured out with a standard tablespoon or teaspoon rather than requiring any assembly. Aquariums containing live plants may need a reduced dose, since some plant species are sensitive to added salt.