How long can koi live without food?

In general, healthy adult koi can survive without food for a period of approximately two weeks. However, this time frame can vary depending on various factors such as the koi's age, size, water temperature, and overall health. Younger, smaller koi may require food more frequently, while older, larger koi may have more fat reserves that allow them to go longer without eating. Additionally, koi that are kept in warmer water will require food more often than those in cooler water, as their metabolism is faster. It's important to regularly feed koi to ensure their proper growth, health, and vitality.