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FD Build-Up Extra Sinking is a premium koi food designed for optimal growth, vibrant skin color, and immune system support. Available in 5.7mm medium sinking pellets, this feed is suitable for koi 25cm and larger and comes in 5kg and 20kg bags. High-quality protein from hand-selected fish meal is balanced with wheat bran, gluten meal, dried brewer's yeast, alfalfa, and krill meal to ensure efficient nutrient absorption and superior digestion.
The sinking pellet design encourages all koi to feed their fair share, reducing competition and ensuring uniform growth across your pond. FD Build-Up Extra Sinking is suitable for low water temperatures, with safe feeding from 6°C, though optimal feeding is above 15°C. The inclusion of probiotics enhances resistance and strengthens the immune system, supporting healthier, more resilient fish.
This feed promotes superior growth rates, improved body volume, and enhanced skin luster, while carefully tailored protein levels prevent water quality issues. Nutrients and enzymes are specifically formulated to reduce stress on koi, ensuring balanced development and healthy pond conditions. The sinking pellets are ideal for all ages of koi, providing complete nutrition in an easy-to-digest form.
Regular feeding with FD Build-Up Extra Sinking ensures vibrant, healthy koi, optimal growth, and a thriving pond ecosystem, making it an essential choice for serious koi enthusiasts.

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What types of products do you offer?
At Queni Koi Southern, we provide a curated selection of high-quality pond supplies and premium koi food. Our products include innovative items like the Sinking Air Line for seamless pond aeration and advanced koi food such as the JPD Shogun, designed to enhance the health and vibrancy of your koi.
How can I ensure the well-being of my koi?
To promote the well-being of your koi, it's essential to provide them with high-quality food and maintain a healthy pond environment. Our expertly formulated koi food under the trademarked brand Kenko Koi food and our pond supplies are designed to support the health and vibrancy of your aquatic life, ensuring your pond remains a thriving ecosystem.
What is your shipping policy?
We pride ourselves on prompt delivery! We offer free next working day delivery on orders over £100, and we use trusted carriers to ensure your products arrive safely and on time. For more details, please check our shipping policy on our website.
What should I do if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us at orders@queni-koi.co.uk as soon as possible. We will replace the product free of charge and cover the return shipping costs for the incorrect or damaged item.
Can I return koi or specially made products?
Unfortunately, once koi have left our premises, we cannot accept any responsibility for them, and they cannot be returned. Additionally, specially made products, such as custom filtration systems, can only be returned if they are faulty or damaged.
How do I cancel my order?
If you wish to cancel your order, you can do so within 14 days of receiving your products. Please contact us at orders@queni-koi.co.uk for authorization.
What is your refund policy?
We will refund all sums paid by you if the items are returned in the condition they were sent. Please allow up to 3-5 days for us to process your return once we receive the items back.
How can I contact customer support?
You can reach our customer support team by emailing us at sales@queni-koi.co.uk or by calling us at 0116 2677053. We're here to help!



