Sera koi royal staple diet enhances the growth and well being of all young and growing koi its easy digestibility makes it ideal for feeding throughout the whole year the well balanced contents of natural minerals trace elements and additional vitamins enhance the natural resistance and vitality of your koisera koi royal is low in fat and thus especially easy to digest and ideal for feeding even at low temperatures suitable for temperatures as low as 8 c mini refers to 2 mm pellet size