Aquarium
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An aquarium is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, a
A freshwater aquarium with plants and various tropical fish
The underwater tunnel in the Sea Life London aquarium
Cat and fishbowl, by Isoda Koryusai. Original c. 1775.
Goldfish in a glass: portrait of Therese Krones, 1824
Total dissolved solids
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Total dissolved solids is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular suspended form. TDS are often
Bottled mineral water usually contains higher TDS levels than tap water.
Conductivity based TDS meter in a cup of water
Pyramid Lake, Nevada, receives dissolved solids from the Truckee River.
Aquarium at Bristol Zoo, England. Maintenance of filters becomes costly with high TDS.