Both Beni and Sumi have luster produced by the skin. Like the way it is with Beni, a good Sumi is the type which develops Maruzome. Sumi has to have a good thickness, and it appears more beautiful when shiny. In contrast, hard sumi with rough texture does not appear beautiful. It must be understood that it is not just the blackness that matters with Sumi.
Truly beautiful Sumi are rare. Currently, appropriate evaluation standards and techniques have not been developed. Quite often, show judges are unable to determine the quality of Sumi. As in Beni, good Sumi possesses elasticity. It adheres to the skin strongly and is solid in its black pigment.
Good sumi is deeply kneaded into the skin. If the skin texture is rough like cotton, however, it cannot become good Sumi. The hobbyist must look for the silky quality of skin in the Koi. Skin quality determines the expression of Sumi. If on a silky skin it will have a strong luster. On a poor skin the shine will be lost.
In a Koi show Tsubo-Sumi is often discussed. In the general sense Tsubo-Sumi is known as Sumi on white skin. Keep in mind however, Nishiki Koi is an expression of artistic pattern. Thinking Tsubo-Sumi as Sumi on white skin, is not an accurate understanding of Tsubo-Sumi.
It is an artistic play of Beni, Sumi, and Shiro, and depending on the shape of a Hiban, the position of Sumi can be critical. It has to be in a critical spot (Tsubo) where it creates a good balance, and yet becomes the emphasis in the artistic play of the pattern.
This section contains articles on Koi and Koi development
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This is from Toshio Sakai
There are two basic typs of Sumi. There is the bluish/black Sumi and the grayish Sumi. The grayish Sumi can have an almost brown appearance to it. I do not actually have any pictures of the gray type but I do have some of the bluish/black type. This type is called Aozumi and Mr. Sakai calls his Atarashi Sumi. The Atarshi Sumi has luster and the gray type does not.
- sumi2.jpg (148.54 KiB) Viewed 14922 times
Kinda multiple part question here, is the bluish sumi also know as kobashi sumi or is that another type ; witch area do you consider the shoulder the area am thinking is from the back of the head to the first ray on the dorsal, thanks in advance.
At some point common sense must prevail.
sschult wrote:Kinda multiple part question here, is the bluish sumi also know as kobashi sumi or is that another type ; witch area do you consider the shoulder the area am thinking is from the back of the head to the first ray on the dorsal, thanks in advance.
The Sumi you are talking about is Kobayashi Sumi and is the grey/brown Sumi. It is no good. Anywhere from the back pf the head to the front of the dorsal fin is considered the shoulder area.
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