Ornamental fish are those that have ornamental value with bright colors or unusual shapes of fish. Typically there are three lines, namely temperate freshwater aquarium fish, tropical freshwater aquarium fish and tropical marine ornamental fish. Black and white and three colored goldfish temperate freshwater aquarium fish mainly red carp, Chinese goldfish, Japanese koi. Tropical freshwater aquarium fish has three series, one light varieties, two are angelfish, three are arowana. Marine ornamental fish mainly from the Indian Ocean, the Pacific coral reefs, variety, Lottery weird, with a primitive ancient mystical natural beauty. Ordinary people like goldfish, one of the late 1980s, the gradual expansion of the ornamental fish market in Guangzhou, the time has almost household aquarium, a "lion head" tens of dollars to a hundred dollars, burst on the scene nobility the source. But goldfish breeding difficult, low survival rate and complex process, people gradually reduced fish, aquarium fish market places cultivating high-quality as the mainstream, but also makes the more aristocratic goldfish high price. Koi in the early 1990s to become the star of goldfish, koi sold a thousand expensive varieties on a million too. Affected by the Hong Kong and Taiwan, after arowana koi overnight, shape, color, superior who sold more than 3 million. But in recent years, and the Red Dragon Koi price has come down to a relatively stable level, a body, color scales, excellent gesture of respect, but the price of adult red dragon million. "Flower Horn" and Taiwan's "fluorescent fish", koi and arowana "status to" guppy Currently, aquarium market upstart is from Malaysia has been "Flower Horn" instead, high-priced varieties kept in million above, the price of over 100,000 yuan of rare species there. "Fluorescent fish" is the beginning of the year before the introduction of new varieties of this fish may faint fluorescence in the dark environment, less than two centimeters in body length of the fish goes to 90 yuan price