My Koi Garden

Old-line and reticulated koi

Goromo / Koromo

Goromo, also called Koromo, looks like a Kohaku at first glance, but the red pattern carries blue, purple, or dark edging that gives the variety its dressed appearance.

Ai Goromo koi with Kohaku-style red pattern and blue reticulation over the red scales.
Real koi photo: Maruju Ai Goromo 47 cm. Credit: KoiQuestion, CC BY-SA 2.0. Source.
Budo Goromo koi showing grape-purple robing over the red pattern.
Real koi photo: Maruyju Budo Goromo. Credit: KoiQuestion, CC BY-SA 2.0. Source.

How to identify Goromo / Koromo

  • White base and red pattern often resemble Kohaku structure.
  • Dark edging appears over or within the red markings rather than as Sanke-style sumi.
  • Ai Goromo tends toward blue edging; Budo Goromo can look more grape-purple.

Quality points

  • The white ground should stay clean so the reticulation does not make the fish look dirty.
  • The overlay should enhance the beni, not blur the pattern edge.
  • Body and skin quality still matter more than novelty.

Common comparison

Do not confuse Goromo with Sanke. Sanke has separate black markings; Goromo has a netted or shaded effect associated with the red pattern.

Look first atGood signBeginner caution
BodyBalanced frame, smooth swimming, no deformity.Do not let rare color hide weak conformation.
Skin and colorClean, readable, and consistent for the variety.Muddy color usually becomes more distracting with size.
Scale or luster traitEven rows, sparkle, reticulation, or metallic quality depending on the group.Random patches, dull fins, or broken scale rows reduce impression.

Sources and editorial note

This page follows the variety structure used by Japanese koi references and the book notes in the My Koi Garden research library, especially the distinction between true variety groups and cross-cutting traits such as Doitsu and Gin Rin. Photos are limited to real images with source and license notes.