The history of fishkeeping
Koi have been kept in decorative ponds for centuries in China and Japan.
Fish have been raised as food in pools and ponds for thousands of years. In Medieval Europe, carp pools were a standard feature of estates and monasteries, providing an alternative to meat on feast days when meat could not be eaten for religious reasons. Similarly, throughout Asia there is a long history of stocking rice paddies with freshwater fish suitable for eating, including various types of catfish and cyprinid. Particularly brightly coloured or tame specimens of fish in these pools have sometimes been valued as pets rather than food, and some of these have given rise to completely domesticated varieties, most notably the goldfish and the koi carp, which have their origins in China and Japan respectively.
Marine fish have been similarly valued for centuries, and many wealthy Romans kept lampreys and other fish in salt water pools. Cicero reports that the advocate Quintus Hortensius wept when a favoured specimen died, while Tertullian reports that Asinius Celer paid 8000 sesterces for a particularly fine mullet.[1]
Although some tropical fish were kept in gas-heated tanks in Victorian times, tropical fishkeeping only really became popular from the 1930s onwards when devices like electric heaters and inexpensive glass aquaria became available. Air transportation has also made it possible for fish to be imported from many parts of the world rapidly and inexpensively. As a result, aquarists are routinely offered large numbers of freshwater fish collected from South America, South East Asia, and East Africa. However, the majority of freshwater fish sold to aquarists are commercially bred, primarily in South East Asia and Florida.
Marine fish are not easily bred in captivity, and only a few species, most notably seahorses and clownfish are farm-raised. Most are collected from coral reefs, in particular from South East Asia, the Red Sea, and the Caribbean.
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