As the British weather is starting to settle and pond temperatures climb steadily into the mid-teens, your Koi’s metabolism is shifting into high gear. If you’ve noticed your fish becoming more active and “begging” at the surface, they are telling you one thing: it’s time to grow.

The Science of the May Growth Spurt: In the colder months, we use easy-to-digest wheatgerm. But as we head toward June, your Koi need more “building blocks.” This is the window where they put on the most length and develop the deep, lustrous skin quality that Japanese varieties are famous for.

To get the most out of this season, you need a feed that offers:

• High Protein Content: Look for 40%+, which supports muscle development.
• Immune Support: Moving from spring to summer can be stressful; added vitamins help them transition safely.
• Zero Waste: High-quality pellets like our N-Koi Rapid Growth range are designed to be highly digestible, meaning clearer water and less strain on your filters.

Neil’s Tip: Watch the Temperature: Before switching exclusively to high-protein growth food, ensure your pond is consistently hitting 15°C. If it’s still dipping low at night, a mix of growth pellets and staple food is the safest way to transition.