Description
Doitsu Showa Japanese Koi Carp
Cyprinus carpio
Overview
The Doitsu Showa Koi is a striking scaleless koi variety prized for its bold black (sumi), red (hi), and white (shiroji) patterning combined with the sleek, leather-like appearance of Doitsu koi. Its dramatic contrast and clean body lines make it a standout feature fish in any pond.
Origin
Japan (selectively bred ornamental koi)
Feeding
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Omnivorous: high-quality koi pellets, wheatgerm food
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Supplement with vegetables, shrimp, and occasional fruit treats
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Feed 1–2 times daily depending on water temperature
Tank / Pond Mates
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Peaceful and compatible with other koi and goldfish
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Avoid housing with aggressive or fin-nipping species
Aggression
Peaceful
Experience Level
Beginner to advanced – suitable for all pond keepers with adequate space
Water Parameters
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Temperature: 15–25°C (59–77°F)
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pH: 6.8–8.2
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Hardness: Moderate
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Requires excellent filtration and oxygenation
Notes
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Best kept in outdoor ponds due to adult size and activity
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Color and pattern intensify with proper diet and water quality
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A long-lived, intelligent fish that can recognize its keeper
An elegant and highly sought-after koi variety, the Doitsu Showa is perfect for pond enthusiasts seeking bold contrast, refined beauty, and classic Japanese koi appeal.
