Marushin Doitsu Kohaku – Nisai – 56cm – Unsexed – Certified

Premium Japanese Koi for Sale – Delivered Direct to Your Door (UK Mainland)

“A clean, high-impact Marushin Doitsu Kohaku with superb colour and powerful presence.”

This beautifully refined Nisai (2-year-old) Doitsu Kohaku from the respected Marushin Koi Farm showcases everything that makes this breeder one of Niigata’s most admired producers of modern-style Doitsu varieties. Featuring bright, pure shiroji and thick, vibrant hi plates laid cleanly across the smooth, scaleless body, this koi delivers striking contrast and a bold, elegant silhouette.

At 56cm, this unsexed Doitsu Kohaku already displays the powerful frame and strong conformation typical of Marushin bloodlines. The neat dorsal scalation and clean lateral lines enhance refinement, while the rich hi pigmentation provides long-term stability and future development potential.

At £750, this is an exceptional opportunity to secure a premium, hand-selected Doitsu Kohaku with superb colour quality, structure, and visual impact.

Why This Koi Stands Out

• Thick, vibrant hi plates with excellent depth and long-term stability

• Pure, bright shiroji delivering striking contrast on the Doitsu body

• Clean, neat dorsal scalation enhancing the body line and refinement

• Strong 56cm Nisai frame with excellent growth potential

• Sourced from Marushin’s leading Doitsu parent set for this spawning

• A bold, modern Doitsu Kohaku with high visual impact and refinement

A superb choice for collectors seeking a clean, powerful, modern-style Doitsu Kohaku with excellent long-term potential.

Key Details

Variety: Doitsu Kohaku – Certified
Age: Nisai (2 years)
Size: 56cm
Sex: Unsexed
Origin: Marushin Koi Farm, Niigata, Japan
Lineage: Marushin bloodline
Pattern: Kohaku (Doitsu)
Condition: Minimum 6-week quarantine, heat-ramped for KHV and CEV
Pond Suitability: 10,000L+ well-filtered pond with strong aeration
Delivery: Secure oxygenated transport via overnight UK mainland courier

About Marushin Koi Farm – Yamakoshi, Niigata, Japan

Location

Located in the mountainous region of Yamakoshi, Niigata Prefecture, Marushin Koi Farm benefits from pristine spring water and cool seasonal conditions — ideal for developing koi with exceptional colour, skin quality, and long-term strength.

Breeder: Mitsuhiro Tanaka

Founded in 1968 and now operated by master breeder Mitsuhiro Tanaka, Marushin is globally recognised for producing high-quality Doitsu and Gin Rin varieties with superb sheen, clarity, and conformation. Tanaka-san personally selects and oversees every stage of breeding to ensure consistent excellence.

Breeding Focus

Marushin specialises in:

• Doitsu Showa

• Gin Rin Showa

• Gin Rin Karashigoi

• Tamasaba

• Select Kawarimono varieties

Their programme emphasises skin quality, strong body structure, and vivid colour contrast.

Distinctive Qualities of Marushin Koi

• Luminous skin and exceptional colour clarity

• Strong, well-balanced body lines

• High-impact pigmentation and visual depth

• Carefully cultivated, artistically refined bloodlines

Why Collectors Value Marushin

Marushin koi are admired for their individuality, refinement, and reliable development. Collectors appreciate their striking patterns, powerful frames, and the farm’s consistent production of standout Doitsu varieties.

Why Buy Koi from Perfect Aquatics?

• Hand-selected in Japan for pattern, shape, and health

• Verified breeding, lineage, certification, and microchipping

• Strict 5-star licensed quarantine procedures

• Individually photographed — the koi you see is the koi you receive

• Expert packing with oxygenated overnight delivery

• Trusted UK retailer with decades of koi expertise

• Recommended premium diet (e.g., Saki-Hikari) for optimal growth and colour

Care and Acclimation

• Float the unopened bag in your pond for 15 minutes to equalise temperature

• Gradually mix pond water into the bag for 10 minutes

• Release the koi gently into the pond

• Avoid feeding for the first 24 hours

• Maintain strong filtration, stable pH, and good aeration

• Feed a premium diet (e.g., Saki-Hikari Balance) for best development

• Any concerns must be reported within 24 hours with clear photos

Please note: Due to strict biosecurity protocols, returns on live koi are not accepted.

Perfect Aquatics Promise

Every koi is fully health-checked, acclimated, and individually photographed. Our expert handlers ensure safe, oxygenated overnight transport so your koi arrives in the best possible condition.

With decades of professional experience in Japanese koi importation and pond care, Perfect Aquatics is trusted across the UK for premium quality, expert guidance, and outstanding customer support.