Sera koi color is the color food consisting of carefully processed small granules for all koi. The balanced composition with 10% spirulina as well as plenty of gammarus and Krill is rich in valuable carotenoids, trace elements, Omega fatty acids and excellently digestible proteins. It supports the optimal coloration of the koi, their development and liveliness. The easily digestible food is suitable for a wholesome diet throughout the year. The floating granules keep their shape particularly well and do not pollute the water. sera koi color medium (4 mm/0.15 in.): color food for colorful, lively koi between 12 and 25 cm (5 – 10 in.).