Last night, I decided to give my koi a few of the sundried baby shrimp. Then I thought, "I should start training them to hand feed!"
I found one of the bigger shrimp and held the tip in the water. After about two minutes, Flash came up and snatched it away from my hand. I did the same thing again. Flash came up again. Finally Honeybee started to get into the act and before I knew it, they were putting on a seaworld show!
They would put their heads out of the water, I would throw a shrimp over to the other side of their tank, they would litterally jump out of the water over to it. I gave them a good meal, and good exercise.
Guide for Training:
Get dried bloodworms or dried baby shrimp. I use shrimp, and this guide refers to shrimp. You can find them in the fish section of nnnnnn, vvvv (etc). Open the jar, and crunch one up with your fingers. They float. If your koi (and/or goldfish) seem to enjoy it, feed it as a supplement to them.
After they are used to this food, including the huge big pieces, you can begin training them. Hold a long piece between your thumb and index finger. Put the tip in your tank. Get their attention by moving it a little bit. When they come over, do not make a sound or move it. They will probably look at it and swim off. Keep trying.
When one finally comes near you, drop the shrimp into the water. This is a reward. Repeat this. After a few shrimp, you can really training them. That is more of a warm-up.
This time, when they come over, do not let go of the shrimp. Hold it loosely. The koi will probably steal it from you, or break off a little piece. After a while, this will be easy and fun for you and your koi. Be warned - you might get splashed.