Maintain your show-quality koi year-round - without switching food with Saki-Hikari Professional Multi-Season. Effective in water temperatures as low as 58 degrees Fahrenheit, Saki-Hikari is engineered for maximum digestibility. A special Probiotic bacteria is added for enhanced growth and digestive health. Pure-cultured spirulina is added to develop and maintain beautiful coloration. Regular use will actually improve your pond's water quality, all while promoting fat-deposit-free growth in your most beautiful koi.