Blue Koi

blue koi

The Koi fish comes in different shades and color. One of the most attractive and highly sought-after fish is the blue Koi. This color looks so fascinating to watch in the pond at night or anytime of the day. With at least 15 Koi varieties known worldwide, the Blue Koi stands out among the most recognized Koi colors.

History of Koi Coloration

Looking at the origin of the koi fish highly recognized today as a beautiful pet fish, it is noteworthy to say that they didn't appear as they are at that time. Their appearance changed with the breeding by Japanese fishers in the 20th century. The koi in different shapes and color was introduced to a more significant population.

The koi are popularly classified into 15 categories, and these categories consist of different subsets. Several methods exist of categorizing koi fish. These fishes are grouped based on their differences, such as color and shape.

Classifying Color

  The Kawarimono is the largest category amongst all the categories of koi; this is due to the fact that the category has multiple kinds of koi. In some quarters, it is agreed that the singular koi of significance is the Gosanke, a species of Sanke, Showa, and Kohaku. The red and white patterns are the distinctive feature of these categories of koi.

Another koi belonging to the Gosanke family is the Kohaku. The initial genetic change in the form of the Kohaku koi fish can be traced to the early part of the 19th century. The red and white markings and the skin of this species is the distinctive feature.

A koi fish that is referred to as the most common among breeders of koi is the Sanke koi. This breed comes in three distinctive color, which is black, red, and white. The history of this breed can be traced to the early 20th century in Tokyo. In the formative period of the Kohaku and Sanke Koi, some people tend to make the mistake of describing them as a result of their change in color and pattern.

In the 1920s, the Showa koi belonging to the Gosanke family were developed. Briefly seeing the Showa, it resembles the Sanke koi due to the red and white patterns when compared to the Sanke koi,  that has black and red patterns with a white background.

Changing Colors

  Indeed the color of a koi is a major determinant of the category it belongs to, but the usefulness of the color doesn't stop there as it also used to examine the wellbeing of the fish. When a koi fish is ill, the color of the fish tends to be dull or sometimes looks as if it possesses a little grey pattern. One thing should take into consideration about exposure to sunlight; it has both advantage and disadvantage. Excess sunlight can lead to sunburn while it can also lead to enhancement of color. To prevent sunburn, make room from shade which can ultimately prevent discoloration.

One thing when buying koi is that the color will vary as they develop. This change in color over time is described as the ontogenetic color change. This process will particularly change the depth of a koi's coloration. In certain scenarios, it can also alter the markings of the koi.

One can also determine the color of the fish by feeding them with a color specific food. This color-specific food is filled with supplements that mostly changes the shade of color red as it makes it more darker, and sometimes it affects white color, making it appear like a link.

Blue Koi

The baby of this category is the blue koi fish. Naturally, peace, coolness, and silence are associated with blue. However, there is a twist to the meaning of blue koi as it has been interpreted in some quarters as that of reproduction or fertility.

Types of Blue Koi Varieties

 1    Asagi

asagi blue koi

Features of Asagi

- Asagi features include;

  • The pectoral fins have a red foundation which is referred to as Matoaka
  • It has a blue body

History has it that the Asagi is one of the original breeds that emanated from the ancestral Magoi some centuries back. As opposed to other breeds of koi, this breed is fairly plain koi. Unlike other fish in the koi other families, this breed is not considered to be attractive because of the plainness. Nevertheless, it still requires a lot of time to breed.

- What to Look For in Asagi

Head: The Asagi head has the same shade, which ranges from white to light blue devoid of dark spots. The distinguishing feature of the Champion Asagi fish is the stainless white head.

Body: The arrangement of scale on the Asagi must be flawless. The suitable scale is the five to six rows of equally distributed blue scales. A net like marking is drawn all over the body with the centers blue centers and a faint rim that is either blue or white. This marking on the fish is popularly called reticulation. Possessing a clarified opposite amongst the color is something to be on the watch for. Take note of scales that have the same colour distribution.

Hi Accents: the Hi on this blue Breed of koi most times looks more like orange than red; however, the deeper the red, the better for the fish. Another thing should be the balance, harmony, and purity of the fish. They should have all these features.

Also, in three spots, the hi on Asagi should be seen; along the sides of the body; which go beyond the lateral line downward and probably link up with the jaws, the fin joints and the cheeks; which perhaps get to the eye level but must not exceed that point. The commonly wanted feature in the pectoral bones is the hi.

If all these features mentioned are missing, then certainly it is not the Asagi.

  2    Shusui

shusui blue koi

Features of Shusui

The Shusui looks much like the Asagi with its hi accent. It’s a blue colored non-metallic koi fish. Shusui came about from the cross of Asagi with Doitsugoi in the early 1900’s.

Shusui’s scale is located along the mid-section of their back and lateral line; it’s not completely covered with scales. The absence of scales shows the light blue skin on their back which is why some people call them the ‘blue-backs.’

- What to Look For in Shusui

Head: Just like that of Asagi, the Shusui head should appear clean with a perfect blend of color which range from white to light blue devoid of dark spots. You could occasionally see hi pattern on the Shusui's head.

Body: Shusui does not possess scales all over their body. Scales are mostly found from the heads base to the tail region. It can also be found along the lateral line.

Also, check carefully to ensure the scales align neatly with a color ranging from deep blue to gray.

Occasionally you can find clumps of scales at the base of the head. Attractive contrasts exist between its dark colored and light skin. When assessing doitsu scales, pay close attention to the symmetry.

Hi Accents: Shusui hi is predominantly redder than that of Asagi, though it has similar placement. You should find it on sides, cheeks, and the fin joints. The hi may also extend to the head.

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