10 Must-Know Facts on How to Build a Koi Pond

3. The size of your koi pond could make or break the ecosystem you want to establish

Use a rope or water hose to lay out the shape on the ground first. A pond for goldfish or water lilies need be only about 2 feet deep for zones 5 or greater. Ponds built in the northern states or areas with all four seasons may need more depth to keep the pond from freezing solid.

Ponds built for koi should be close to three feet or deeper to allow these larger fish enough space. The biggest mistake that most people make is creating the pond or water garden too small.

Note: A larger pond is more stable and easier to maintain.

2. Location is everything

Select an area where you can see the pond year round and know that they will attract wildlife including birds, butterflies, and even mosquitos. Position the pond where runoff from rain will not flow into the pond. Place fish-only ponds in areas with shade.

Water circulation is not crucial, but the use of a pump will permit you to keep more fish. Plus it will keep your water plants healthy. Most ponds will benefit from the utilization of a biological filter, which is essential if you are keeping koi or more than a few goldfish.

1. There is a difference between a koi pond and a water garden

You should consider what type of water life you want in the space. Is it going to be a home for goldfish or koi? Or is your primary concern for the aquatic plants? Perhaps you only want the pond for the sound of a waterfall. Each type of pond will need to fit its specific features.

Keep in mind that the most common mistake water landscapers say they executed when building their first pond was making it too small. A small pond limits the number of fish and plants you can add.

A koi pond is not the same as a water garden. Koi fish restrict the amount of plant life available to be developed. Simply put: koi eat some plants. A koi pond should also be larger because koi get quite large despite the size of the pool. Koi ponds are at least 1000 gallons in volume, the bigger, the better. It also needs to have an area of the pond at least 3 feet deep, 4-5 may be sufficient.

A water garden usually contains a variety of aquatic plants and fish. Water gardens in moderate climates typically need for an area of the pond to be at least 2 feet deep. Colder climates require a depth to provide at least 12″ to 16″ of water below the freeze zone.

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