When you build a koi pond you need to decide the best place to put your pond, how big you want it to be, the shape/depth, whether you want fish or not, and many other details.
You even should choose a theme, the type of plants that you will use to create a certain look.
Unfortunately, many pond supply stores don't really have a knowledgeable sales person on hand to answer your questions.
Some may know about setting up a generic pond, while others may know about koi fish, but it is rare to find someone that knows about both.
Don't let anyone tell you that any old pond design will do! Koi require specialized equipment and design features.
If you try to raise koi in a standard garden pond, they will likely fail to thrive.
Do take into account size matters.
If you make your pond too small, you can actually stunt the growth of your koi.
Changing your plan mid-construction will likely cost you both time and money.
Write down all of your ideas and create a list of the things that you want your pond to have, and what you could do without.
When designing your koi pond, you want to think first about the safety of your fish.
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Choosing building materials that will keep them safe is of utmost importance.
Also make sure to bear in mind that children are attracted to water and that you should make sure that your koi pond is built in such a way that small children cannot get near to the water as you don't want to be responsible for a child drowning.