When water tempertures reach 68 degrees or higher, give your koi and goldfish a boost! Since they have depleted their fat reserves over the winter, they are longing for food rich in protein. You can feed up to four times a day. Feed between 2 and 3% of the their body weight per day. Includes color enhancer. 40% protein. Switch to Cold Weather Formula when the water tempertures dip below 68 degrees.