Kawarimono Koi

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Species group:

Other common names:

Scientific name: Cyprinus carpio

The basics:
The Kawarimono contains all the non-metallic Koi that do not fit into any other class. However, this does not mean the inhabitants of this class are less appreciated. On the contrary; Koi like the Chagoi (brown), Karachigoi (mustard), Kigoi (yellow), Ochiba Shigure (grey with brown Kohaku patterning) and many others are to be found in almost every pond. They are known to be the fastest growing Koi of them all and maybe even more important; they are far less easily scared than the other varieties, making them the ideal pet fish. Having one ore some of these in your pond, might even have a positive effect on all other Koi, making them more comfortable with your presence. This class also shelters varieties like the (Aka) Hajiro, Sumi Nagashi, Kage Showa and even the very rare Midorigoi, which is transparant green.


0-36 inches

Koi are peaceful, social fish but can cause stress to other fishes because of their constant activity. They are compatible with similarly active and constantly feeding species like the Goldfish.

Koi grow large, up to about 3 feet or more, making an outdoor pond the only suitable habitat for them. Ponds should be at least 500 gallons in capacity, requiring larger sizes for bigger and more mature communities. For areas that freeze in the winter, pond depth should be at least 4 feet, and heaters must be provided to prevent the pond from completely freezing over. Water should be well oxygenated and efficiently filtered because of the fish’s tendency to excrete large amounts of waste. Outdoor ponds should be protected from predators like cats and raccoons, and from winged fish-eaters like herons, hawks, and eagles. Net or wire screens are recommended, so are shade trees to cover the pond from airborne predators. Floating plants like lotus and water cabbage, as well as bamboo canopies, are often used to provide shade and some protection for the fish especially in the summer.

37.00-77.00 °F


0.000-0.000 mg/L


red eyes, Beautiful Fish, garden pond, Large Ponds, scales glitter, lovely Ghost Koi


Expensive, herons, experience


fresh aerated water

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