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Black koi fish are koi fish that bear the black koi pattern. A lot of people prefer the black koi over other koi fish. In general, koi fish, which originate from the carp family, are known to live up to 35 years, although there are reports that carp can live for more than 200 hundred years! Several koi ponds around the world have black koi fish simply because koi are beautiful fish that live for a long time.

Koi fish were initially bred from carp in Japan. Koi come in many colors, not only black. Black koi fish particularly were bred from carp fish that had a couple of colors. Thanks to the commitment and patience of Japanese koi breeders, koi breeders from around the world, as well as koi enthusiasts, are able to take pleasure in a wonderful colorful array of koi fish today.

The male and female koi fish have characteristics that separate them from each other. For example, the male koi fish have concave anal parts and they are characterized by a breeding spot on their heads. After spawning, the female koi is capable of laying as much as a thousand eggs. The fry (baby koi) hatch anywhere from four to seven days, depending on the temperature of the pond. Koi spawning and also fry hatching may happen very fast, but it normally takes 3 to 12 weeks for the fry to reveal their distinct colors.

Like any other koi fish, black koi have to be kept in ponds that are big enough since koi fish tend to grow up to three feet long. The Magoi koi, which is a popular black koi, is seen to grow large very fast. The Magoi koi may look like bronze if it's observed from all directions other than from the top. Many koi breeders are using this particular black koi for breeding together with other koi in order to create large koi in different color patterns. Another black koi is the Karasu koi, also called the crow koi. The body of this koi is black and its fins can be black also. The Karasu koi's belly can also be white or orange in colour.

Did you know that almost all koi change their colors and this is in response to the environment, especially their diet? Healthy koi fish typically have vivid colors. One specific koi, the Matsukawabake koi, is well known for its shifting colors. Although it is regarded as a black koi, the Matsukawabake koi can change its color pattern when the water temperatures and foods change. This certain koi can appear completely black on one day and completely white on the following day. This black koi typically goes back to its initial colors when its environment and food go back to normal or original state.

Among the different varieties of black koi, the Kumonryu koi or commonly known as dragonfish koi, appear to be the favorite black koi of many koi lovers. This black koi is called "dragonfish" because it resembles an ancient dragon in the pictures. This black koi has a tendency to undergo color changes when the seasons change.

Koi ponds from all over the world will have koi fish in a wide range of color patterns. Koi fish are an excellent addition to any pond. With their changing colors, they can provide limitless hours of amusement for everybody. Why, even the black koi fish alone are unique enough in their color changes!

Koi Supplies You Need In Order To Have Energetic Koi
If you want your koi fish to be healthy and vibrant-looking, you will need to make sure you have plenty of quality koi supplies. So what koi supplies are essential?

The Key Reason Why Installing A Koi Filter System Is Very Important
Not only does having a koi filter system installed help make your koi pond more attractive, it also does a lot to keep your koi fish healthy. Koi fish are highly sensitive to the pH balance and density of the water they're in compared to other types of fish.

Koi Pond Water Garden: Why And How To Make One For Your Koi
If you want to keep koi, you will need to build them their habitat. It will be cruel to keep your koi fish in an aquarium because they can grow large and need ample space and depth to swim around. You need to build a koi pond water garden.

Salt Water Aquarium - Some Critical Facts To Keep In Mind Before Buying One
A salt water aquarium is not a toy and shouldn't be wrapped up as such. By buying a fish tank you are taking responsibility for the care of these beautiful creatures and this is not something you should enter into lightly.

Koi Breeding: Everything You Need To Know About It
Koi breeding is not easy if what you aim for is to produce high-quality fish for competition purposes. Before you can obtain a prize-winning koi fish, you will have to cull and discard several thousand fry. The koi breeding process is long and difficult but it is all worth it.

Custom Aquariums - A Few Guidelines On Ways To Make Effective Use Of Plants And Algae
Plants and Algae are often left out when planning custom aquariums yet they fulfill various important functions. Plants act as water conditioners, a source of food as well as being objects of beauty

What All You Need To Properly Enhance Your Fish Tank
Decorating your salt water fish tanks with rocks and pieces of coral is imperative in order to make the fish feel at home.

You Ought To Be Adequately Educated Before You Can Manage To Have A Healthy Fish Tank
Education goes hand in hand with populating a custom fish tank. You cannot just expect to buy a load of new fish and watch them swim happily around all day.