10-12” (25-30cm) Japanese koi

9–11” Japanese Koi (23–28cm) – Hand Selected

Looking for koi that truly stand out?

Our 9–11” Japanese koi are a major step up — larger, more developed, and already showing strong colour, pattern, and body shape. These are the fish that instantly transform a pond from average to impressive.

Sourced from respected Japanese breeders, each koi is carefully selected for:

• Deep, vibrant colour
• Clean, well-balanced patterns
• Strong body structure and growth potential

👉 These aren’t starter fish — these are feature koi

🌟 Why choose 9–11” Japanese koi?

• Highly visible immediately in any pond
• More refined colour and pattern development
• Stronger, established fish with excellent growth potential
• Perfect for creating a premium, high-impact pond

📦 What to expect

• Size: 9–11” (23–28cm approx.)
• Genuine Japanese koi (mixed varieties depending on availability)
• Packed securely with pure oxygen
• Covered by our Live Arrival Guarantee

💧 Care Requirements

Koi at this size require proper space and filtration to reach their full potential:

• Stocking guide: Minimum 500–1,000 litres per koi
• Filtration: High-quality filtration is essential
• Water parameters:
• Ammonia: 0
• Nitrite: 0
• Nitrate: Low
• Temperature: Ideally above 10°C
• Acclimation: Float bag for 15–20 minutes before release

👉 Tip: Stable water and consistent feeding will allow these koi to grow quickly and develop even deeper colour and pattern.

⚠️ Important

These koi are already showing strong quality and will:

• Continue to grow into large, impressive fish
• Develop richer colour and sharper contrast over time
• Become true focal points in your pond

🛒 For those who want proper koi

If you want:

• Fish that stand out instantly
• A clear jump in quality
• A pond that looks established and premium

👉 This is the size to go for.

Upgrade your pond properly — order today and see the difference immediately.