Can Koi survive in any garden pond?
While goldfish are happy nearly anywhere, Koi have more complex needs. They need a larger pond that is at least 3′ deep. The pond should also be a simple, open shape. Because Koi east so much, you will need extra filtration. Koi, when well cared for, can live for many years. You will need to commit yourself to them for some time. We recommend you study the requirements and lifestyle of Koi before you buy any for your pond.