Marushin - Showa - Nisai - OPA013
Showa (Marushin) – Nisai – 52cm – £895
Premium Japanese Koi for Sale – Delivered Direct to Your Door (UK Mainland)
“A powerful Marushin Showa with bold sumi, vibrant hi, and outstanding visual impact.”
This bold and beautifully marked Nisai Showa from the renowned Marushin Koi Farm exemplifies the breeder’s expertise in high-contrast, high-quality Showa. Featuring deep, rich hi, clean shiroji, and thick, glossy sumi, this koi demonstrates excellent pattern placement and future refinement potential. The striking facial markings add exceptional character, creating a fish with both presence and personality.
At 52cm, this Nisai displays a strong, well-proportioned frame, ideal for continued growth and development. The sumi already shows confident formation and will continue to refine as the koi matures, reflecting classic Marushin quality.
A premium young Showa offering bold pattern impact, superb colour quality, and excellent value.
Why This Koi Stands Out
-
Thick, inky sumi with excellent placement and long-term development potential
-
Vibrant, deep hi providing outstanding colour intensity and stability
-
Clean, bright shiroji for strong contrast and visual definition
-
52cm Nisai with a balanced, powerful frame ideal for growth and maturation
This Marushin Showa represents the breeder’s dedication to producing koi with both aesthetic beauty and structural strength. Perfect for collectors seeking a visually striking addition to a pond or a high-potential show koi.
Key Details
-
Variety: Showa
-
Age: Nisai (2 years)
-
Size: 52cm
-
Origin: Marushin Koi Farm, Niigata, Japan
-
Lineage: Marushin
-
Condition: Minimum 6-week quarantine, heat-ramped for KHV and CEV
-
Pond Suitability: 10,000L+ well-filtered pond with strong aeration
-
Delivery: Secure, oxygenated overnight UK mainland courier
About Marushin Koi Farm – Yamakoshi, Niigata, Japan
Breeder – Tanaka Mitsuhiro
Founded in 1968, Marushin Koi Farm is internationally recognised for producing high-quality koi with exceptional colour, pattern, and body conformation. Mitsuhiro Tanaka personally oversees all breeding and selection to ensure every koi meets the farm’s rigorous standards.
Breeding Focus
Marushin specialises in Doitsu Showa, Ginrin Showa, Ginrin Karashigoi, Tamasaba, and other Kawarimono, producing koi that stand out in both beauty and individuality.
Distinctive Qualities
Marushin koi are celebrated for luminous skin, strong, balanced frames, and vibrant colour contrast. Each fish is raised for both visual impact and long-term health, ensuring steady growth and development.
Why Collectors Value Marushin
Collectors seek Marushin koi for their combination of pattern precision, body strength, and artistic impact. Every fish is a reflection of the farm’s dedication to quality and refinement, making them highly sought-after for ponds and shows alike.
Why Choose Our Koi?
-
Hand-selected in Japan for pattern, shape, and health
-
Rare first-spawning selection from the best parent set
-
Strong structure that improves in the right environment
-
Recommended Saki-Hikari diet for optimum colour and growth
-
5-Star licensed quarantine and strict health checks
-
Ideal for show-quality display or as a striking pond centrepiece
Care & Acclimation
-
Float the unopened bag in pond water for 15 minutes
-
Gradually mix pond water into the bag over 10 minutes
-
Release koi gently into the pond
-
Avoid feeding for the first 24 hours
-
Maintain strong filtration, stable pH, and good aeration
-
Feed premium koi diet (e.g., Saki-Hikari Balance) for best development
-
Report any concerns within 24 hours with clear photos
Perfect Aquatics Promise
All koi are individually health-checked, acclimated, and photographed. Our experienced team ensures safe, oxygenated overnight shipping. The koi you see is the koi you receive.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Marushin - Showa - Nisai - OPA013
Marushin - Showa - Nisai - OPA013
Showa (Marushin) – Nisai – 52cm – £895
Premium Japanese Koi for Sale – Delivered Direct to Your Door (UK Mainland)
“A powerful Marushin Showa with bold sumi, vibrant hi, and outstanding visual impact.”
This bold and beautifully marked Nisai Showa from the renowned Marushin Koi Farm exemplifies the breeder’s expertise in high-contrast, high-quality Showa. Featuring deep, rich hi, clean shiroji, and thick, glossy sumi, this koi demonstrates excellent pattern placement and future refinement potential. The striking facial markings add exceptional character, creating a fish with both presence and personality.
At 52cm, this Nisai displays a strong, well-proportioned frame, ideal for continued growth and development. The sumi already shows confident formation and will continue to refine as the koi matures, reflecting classic Marushin quality.
A premium young Showa offering bold pattern impact, superb colour quality, and excellent value.
Why This Koi Stands Out
-
Thick, inky sumi with excellent placement and long-term development potential
-
Vibrant, deep hi providing outstanding colour intensity and stability
-
Clean, bright shiroji for strong contrast and visual definition
-
52cm Nisai with a balanced, powerful frame ideal for growth and maturation
This Marushin Showa represents the breeder’s dedication to producing koi with both aesthetic beauty and structural strength. Perfect for collectors seeking a visually striking addition to a pond or a high-potential show koi.
Key Details
-
Variety: Showa
-
Age: Nisai (2 years)
-
Size: 52cm
-
Origin: Marushin Koi Farm, Niigata, Japan
-
Lineage: Marushin
-
Condition: Minimum 6-week quarantine, heat-ramped for KHV and CEV
-
Pond Suitability: 10,000L+ well-filtered pond with strong aeration
-
Delivery: Secure, oxygenated overnight UK mainland courier
About Marushin Koi Farm – Yamakoshi, Niigata, Japan
Breeder – Tanaka Mitsuhiro
Founded in 1968, Marushin Koi Farm is internationally recognised for producing high-quality koi with exceptional colour, pattern, and body conformation. Mitsuhiro Tanaka personally oversees all breeding and selection to ensure every koi meets the farm’s rigorous standards.
Breeding Focus
Marushin specialises in Doitsu Showa, Ginrin Showa, Ginrin Karashigoi, Tamasaba, and other Kawarimono, producing koi that stand out in both beauty and individuality.
Distinctive Qualities
Marushin koi are celebrated for luminous skin, strong, balanced frames, and vibrant colour contrast. Each fish is raised for both visual impact and long-term health, ensuring steady growth and development.
Why Collectors Value Marushin
Collectors seek Marushin koi for their combination of pattern precision, body strength, and artistic impact. Every fish is a reflection of the farm’s dedication to quality and refinement, making them highly sought-after for ponds and shows alike.
Why Choose Our Koi?
-
Hand-selected in Japan for pattern, shape, and health
-
Rare first-spawning selection from the best parent set
-
Strong structure that improves in the right environment
-
Recommended Saki-Hikari diet for optimum colour and growth
-
5-Star licensed quarantine and strict health checks
-
Ideal for show-quality display or as a striking pond centrepiece
Care & Acclimation
-
Float the unopened bag in pond water for 15 minutes
-
Gradually mix pond water into the bag over 10 minutes
-
Release koi gently into the pond
-
Avoid feeding for the first 24 hours
-
Maintain strong filtration, stable pH, and good aeration
-
Feed premium koi diet (e.g., Saki-Hikari Balance) for best development
-
Report any concerns within 24 hours with clear photos
Perfect Aquatics Promise
All koi are individually health-checked, acclimated, and photographed. Our experienced team ensures safe, oxygenated overnight shipping. The koi you see is the koi you receive.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Showa (Marushin) – Nisai – 52cm – £895
Premium Japanese Koi for Sale – Delivered Direct to Your Door (UK Mainland)
“A powerful Marushin Showa with bold sumi, vibrant hi, and outstanding visual impact.”
This bold and beautifully marked Nisai Showa from the renowned Marushin Koi Farm exemplifies the breeder’s expertise in high-contrast, high-quality Showa. Featuring deep, rich hi, clean shiroji, and thick, glossy sumi, this koi demonstrates excellent pattern placement and future refinement potential. The striking facial markings add exceptional character, creating a fish with both presence and personality.
At 52cm, this Nisai displays a strong, well-proportioned frame, ideal for continued growth and development. The sumi already shows confident formation and will continue to refine as the koi matures, reflecting classic Marushin quality.
A premium young Showa offering bold pattern impact, superb colour quality, and excellent value.
Why This Koi Stands Out
-
Thick, inky sumi with excellent placement and long-term development potential
-
Vibrant, deep hi providing outstanding colour intensity and stability
-
Clean, bright shiroji for strong contrast and visual definition
-
52cm Nisai with a balanced, powerful frame ideal for growth and maturation
This Marushin Showa represents the breeder’s dedication to producing koi with both aesthetic beauty and structural strength. Perfect for collectors seeking a visually striking addition to a pond or a high-potential show koi.
Key Details
-
Variety: Showa
-
Age: Nisai (2 years)
-
Size: 52cm
-
Origin: Marushin Koi Farm, Niigata, Japan
-
Lineage: Marushin
-
Condition: Minimum 6-week quarantine, heat-ramped for KHV and CEV
-
Pond Suitability: 10,000L+ well-filtered pond with strong aeration
-
Delivery: Secure, oxygenated overnight UK mainland courier
About Marushin Koi Farm – Yamakoshi, Niigata, Japan
Breeder – Tanaka Mitsuhiro
Founded in 1968, Marushin Koi Farm is internationally recognised for producing high-quality koi with exceptional colour, pattern, and body conformation. Mitsuhiro Tanaka personally oversees all breeding and selection to ensure every koi meets the farm’s rigorous standards.
Breeding Focus
Marushin specialises in Doitsu Showa, Ginrin Showa, Ginrin Karashigoi, Tamasaba, and other Kawarimono, producing koi that stand out in both beauty and individuality.
Distinctive Qualities
Marushin koi are celebrated for luminous skin, strong, balanced frames, and vibrant colour contrast. Each fish is raised for both visual impact and long-term health, ensuring steady growth and development.
Why Collectors Value Marushin
Collectors seek Marushin koi for their combination of pattern precision, body strength, and artistic impact. Every fish is a reflection of the farm’s dedication to quality and refinement, making them highly sought-after for ponds and shows alike.
Why Choose Our Koi?
-
Hand-selected in Japan for pattern, shape, and health
-
Rare first-spawning selection from the best parent set
-
Strong structure that improves in the right environment
-
Recommended Saki-Hikari diet for optimum colour and growth
-
5-Star licensed quarantine and strict health checks
-
Ideal for show-quality display or as a striking pond centrepiece
Care & Acclimation
-
Float the unopened bag in pond water for 15 minutes
-
Gradually mix pond water into the bag over 10 minutes
-
Release koi gently into the pond
-
Avoid feeding for the first 24 hours
-
Maintain strong filtration, stable pH, and good aeration
-
Feed premium koi diet (e.g., Saki-Hikari Balance) for best development
-
Report any concerns within 24 hours with clear photos
Perfect Aquatics Promise
All koi are individually health-checked, acclimated, and photographed. Our experienced team ensures safe, oxygenated overnight shipping. The koi you see is the koi you receive.





















