Koi and goldfish will eat both animal and vegetable matter which makes them omnivorous.  They do not have stomachs so they can not eat a large amount of food at one time.  This is the reason koi and goldfish spend a great deal of time foraging around for food. They will actually eat just about anything that is small enough for them to swallow whole.

The actual hand-feeding process can be pleasurable for both you and your fish.   Instead of throwing the food into the pond, take the time to place the food into the water at the same area daily. 

In so doing, the koi and goldfish will become accustomed to the routine and will, over time, become friendly and trusting enough to be hand-fed.  Koi and goldfish have even been known to recognize there owners' footsteps and follow them around the waters edge. 

Taming and training your koi and goldfish is a gradual process, but it can be very rewarding. Spending this time with your fish will also allow you to observe any problems early on.

Many koi and goldfish owners do not realize the importance of feeding.  Not only must consideration be given to the amount and time of feeding, but to the combinations of foods that are essential for healthy and colorful fish.

Koi and goldfish food can be divided into proteins, fats, carbohydrates, vitamins and minerals.