are koi fish big goldfish?
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Goldfish are actually descended from crucian carp, while the koi have barbels, grow longer, and are in fact a fancy domesticated version of the common carp. Although more widely known in the wild, the koi fancy is more “elite” than the goldfish scene, with millions of dollars being invested in the finest fish.
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As with any backyard pond, a pond dedicated to keeping colorful Koi, can be a great way to keep fish. Ponds not only provide large habitats for your fish, but are also a pretty and relaxing spot for you in your yard.
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Many people stock their yard ponds with goldfish or colorful koi. Both are species of carp. If you live in the north and the surface water is cold from extreme weather, they will head for the bottom to keep warm. But the major reason fish stay on the bottom of a pond is that is where the oxygen is.
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Ochiba (落葉) is a light blue/gray koi with copper, bronze, or yellow (Kohaku-style) pattern, reminiscent of autumn leaves on water. The Japanese name means "fallen leaves". Koromo (衣) is a white fish with a Kohaku-style pattern with blue or black-edged scales only over the hi pattern.
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Koi are cold-water fish that can survive Midwest winters. Koi root up native plants while feeding and cause the water to become muddy, potentially disrupting feeding and spawning for native fish.
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There are two main indicators of sex in koi. The easiest way to tell is from fin shape and color. Male koi have smaller, more pointed fins that are opaque and generally colorful. Female koi, on the other hand, have larger, rounded fins that are partly or completely translucent or even transparent.
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Koi are a domesticated version of the common carp. They are not considered to be a separate species from the common carp, but rather a sub-species. Unlike the common carp, koi have been selectively bred to have vibrant colors and patterns. If they were left alone in the wild, koi would breed with common carp.
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The majority of common tropical fish live for an average of three to five years, while goldfish are among those living the longest, potentially up to 20 years. Koi, who are cousins of the goldfish, can live up to 40 years.
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Koi fish make excellent pets for almost everyone. ... Koi fish are a hardy pet. They can tolerate a wide variety of water temperatures, more than most fish. Koi are considered "docile." They do not fight with each other and they do not eat smaller fish.
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How big do Koi get? Most domestic Koi usually grow about 12 to 15 inches long. Japanese Koi usually grow 22 to 26 inches in long. Jumbo sized Koi grow up to 34 to 36 inches long.
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While goldfish are considered by some to be hardier than koi, their needs vary more widely depending upon breed. Although smaller than koi, they produce a greater amount of waste in relation to their body size and as such require more dissolved oxygen (and more frequent pond cleaning).
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Also koi meat, like all other carp, is a bit tough. Koi spend much of their time in shallow, stagnant water, so the risk of picking up a bacterial infection from them is high. Finally, you wouldn't eat koi unless you really want to fuel your ego!
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As with any backyard pond, a pond dedicated to keeping colorful Koi, can be a great way to keep fish. Ponds not only provide large habitats for your fish, but are also a pretty and relaxing spot for you in your yard. ... Koi can live in excess of 100 years, but typically, if well cared for, live 20-30 years.
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The giant danio (Devario aequipinnatus) is a tropical fish belonging to the minnow family Cyprinidae. Originating in Sri Lanka, Nepal, and the west coast of India, this species grows to a maximum length of 4 inches (10 cm), making it one of the largest of the danionins.
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Japanese koi. Koi fish are colorful, ornamental versions of the common carp. Modern Japanese koi are believed to date back to early 19th-century Japan where wild, colorful carp were caught, kept and bred by rice farmers. The word “koi” comes from the Japanese word for “carp.”
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While it's true that bottom feeders like carp (Cyprinus carpio), koi and goldfish feed on algae and insects in a pond, their constant rooting around at the bottom of the pond can create water clarity issues, particularly if the pond has a clay or silt bottom.
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Koi have been accidentally or deliberately released into the wild in every continent except Antarctica. They quickly revert to the natural coloration of an Amur carp within a few generations. In many areas, they are considered an invasive species and a pest.