The earliest record of tropical fish is AD 1868. Capogni introduced tropical freshwater fish to Paris for breeding. The English name of fish is ParadiseFish, which is actually a wild fighting fish in the south of China, also known as China fighting fish, and it is the earliest tropical freshwater fish artificially raised and watched in the world. The earliest sale of tropical fish began in1London, England in the 1920s, when tropical fish were sold in some toy stores.
The breeding of ornamental fish can be traced back to Babylon before 2500 BC. Please refer to the link materials for details.