Koi Kohaku Swordtail – Xiphophorus Hellerii

The Koi Kohaku Swordtail (Xiphophorus hellerii) brings the beauty of Japanese koi patterning to the tropical aquarium. The Kohaku pattern — bold red (hi) patches over a clean white base — is the most prized pattern in the koi world, and this swordtail variety captures that aesthetic in miniature. Each fish has a unique distribution of red and white, making every individual distinct.

Care at a Glance

Kohaku – The King of Koi Patterns

In the Japanese koi world, Kohaku is considered the most important and classic pattern — simple yet refined, featuring red markings over a pure white body. This swordtail variety replicates that aesthetic beautifully. The contrast between the vivid red and clean white is enhanced as the fish matures, with colours becoming more defined and intense.

Every Fish Is Unique

Like true koi, the red and white distribution varies between individuals. Some fish may show large, bold red patches, while others display a more scattered or balanced pattern. This natural variation makes each fish one-of-a-kind and creates an interesting group where every individual is different.

Tank Mates

Peaceful with all community fish. Compatible with other swordtails, platies, mollies, tetras, and corydoras. For a larger group, see our Koi Kohaku Swordtails 10 Pack. Also browse Green Wagtail Swordtails and Assorted Swordtails.

Why Buy from Tropical Fish Co?

All fish are carefully packed and shipped with live arrival guarantee. Order today for fast UK delivery.