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Koi Fish

The scientific name for the koi fish is Cyprinus Carpio.

Where are they found?

The koi is found in Japan, but is originally from China

10 Facts

"Koi fish is a large fish. It can reach up to 3 feet in length. Size of the fish depends on the living conditions. Adequate amount of food and oxygen and appropriate temperature are essential for the growth of fish.

Color of the koi fish depends on the variety. They can be white, black, blue, red, cream and yellow in color. Koi fish are covered with different spots.

People in Japan believe that koi fish symbolizes wealth, prosperity, love, successful career and good fortune. Each variety is associated with one of those values.

Koi fish and goldfish have the same ancestor. Although they share similarities in appearance, koi fish can be recognized by barbels on the upper lip.

Koi fish is an omnivore (consumes both plants and animals). It eats different kind of fish and their eggs, lettuce, watermelon and peas.

Koi fish can recognize the person which feeds them and they can be trained to eat from his/her hand.

Koi fish have several predators, such as raccoons, otters, badgers, birds of prey, snakes, cats and dogs.

Koi fish prefers water temperature that ranges from 15 to 25 degrees of Celsius. It doesn't tolerate drastic or rapid changes in temperature.

Koi fish that live in temperate geographic areas hibernate during the winter. It swims to the bottom of the pond (with higher temperature of water) and remains dormant until the weather conditions improve.

Koi fish are sensitive to the sun. They may get sunburns if they live in the ponds that do not provide enough shadow.

Koi fish release ammonia in the water. When large number of koi fish inhabit same pond, level of ammonia can increase rapidly and induce poisoning of fish."

Koi Fish Facts. (n.d.). Retrieved from

Koi Fish Selection | Jumbo 2 Year old Kohaku Koi from Japan

Popular history related to Koi

"Koi are actually a mutated form of carp. Carp developed patches of colors such as white, red, and blue in their natural habitats in the Black, Caspian, and Aral seas in Asia, and China is the true beginning of Koi fish. According to Chinese history Confucius’s son was given a mutated carp by king Shoko of Ro and from then on the fish became the subject of much Chinese artwork. When the Chinese invaded Japan, these carp were breed as a food source due to their resilient nature, this was the beginning of the Japanese Koi fish."

Koi, K. (2012). Japanese koi fish: A brief history. Retrieved from

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What would his name be?

His name would be Lord Fish because of the cross that was branded on him as a baby fish.

Where would he live?

He would live in San Antonio, Texas, in ponds.

How would he impact the environment?

He would be the God of all fishes. He would clean every body of water over night.

The reason for his color?

He is all white so that he reflects sunlight to the rest of the inhabitants around him so they won't die.