RAISING KOI FISH IN A POND
Koi are a hearty member of the carp fish family and can handle quite a bit if the conditions of your koi carp pond are right. Seasonal ponds should be at least a 1.5 deep (half a meter) while year-long ponds should be at least 4.5 feet (1.5 meters). Water should be kept between 60 and 75 degrees F (about 15-25 degrees C)
Beyond depth and temperature, your koi/carp/fish need a few important things in a pond habitat:
To read more on this story, click here: Koi Story: A Beginner’s Guide To Raising Koi Fish