Don't Build Koi Pond Without Knowing These Infos
However, additional 2 feet (total 5 feet) should be provided for additional safety
It is not always possible to maintain building pond like this. However, the minimum volume should be the same
4-5 average-sized koi can live here for a few years. However, It should not be permanent because koi grows fast.
Koi fish are very active & they love to swim. So to keep them healthy & happy try to build a leaghty pond.
* This is developed for just reference purpose. Actual pond varies a lot