Graceful koi
Creative Commons License photo credit: quinn.anya

First of all and to prevent a high difference of temperature the Koi fish should be used to the pond water temperature.

As you know the Koi come in bags with water so just let the bag with the Koi inside float on the water pond for 15-20 minutes.

The next step is to mixed a some water pond with the bag water for around 10 minutes so that the Koi can get used to the ph of the water.

After this done you can safely put your Koi in the pond and enjoy the view.