DemonChild wrote:
The last looks more like Goromo or Daitsu to me.
I researched a bit about the colors. Tancho means a red circle on the koi's head, so the first two are really Tancho and Tancho Sanke
Now the third... (most common, second to grow)
This one was harder, because some information contradicted, but I found this site, which explains it simply, and this marvel, which contains all the koi pattern standards :3
Here were the theories: this rat was either doitsu, goromo, showa or sanke
Goromo is red patches with blue-tipped scales, so that's not it.
Showa?
The sanke koi, also called Taisho Sanshoku, has white skin with a pattern of black and red blotches or spots.
The showa koi pattern is much like the sanke one. However, the background color is black and the fish has red and white patterns.
The rat is predominantly white, so it's not showa. Now remains sanke and doitsu, the two hardest to tell apart
The previous quote about the sanke concords. But the pictures of doitsu, too...
Reading this gave me the answer:
A good showa must have all three colors on its head.
I looked more closely at the head. Oh look! There's a Tancho marking! Does that mean there's two tancho sankes??
A round patch of red on the head is considered nice. If this red patch is the only red marking on the sanke, then the koi is called a 'tancho sanke', a highly-prized koi variety among the Japanese since it looks like their national bird. If there are other red markings on the body of the koi, then the round head patch makes it a 'maruten' sanke.
And there was a picture. The doitsu is actually a 'Doitsu Sanke', which is very similar to the Maruten, but with a jagged/not round spot on the head.
Bingooooooooooooooooooooooooooooooo



Tancho --- Tancho Sanke --- Maruten Sanke
And I don't even have time to lose ewe This is just more interesting than my essays, s'all....