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By Tanya Turner
Are you thinking of building a koi fish pond? Keeping these magnificent fish in your garden can be great fun and it is not as difficult as you might think. With the right care koi can live for decades and some can become almost a meter long. Follow these tips to plan your pond properly so your koi will live long and happy life.
1 Depth is important
Depth of your pond is crucial. The minimum recommended depth is 4 feet, however it is much better to give your fish six or even 8 feet deep pond. This will ensure that your koi are protected from raccoons, cats and other animals who love a fish dinner. Deeper fish pond also helps to keep water cool in hot summer days
2 Make your pond as large as you can
Small ponds are not suitable for koi. Remember, with time koi can grow quite large and they will need a lot of room. Also there are so many color variations of koi, that with time you will probably want to add more fish to your pond. So it is better to create a large pond from the start than rebuild it later. About ten thousand gallons is a good size for a koi pond, bigger would be even better.
3 Use fish pond heater in colder months
Unlike tropical fish, koi don’t suffer much from cold; however you should never let your pond freeze completely. Installing a proper pond heater will always keep an opening in the ice. Also keep in mind, that koi only grow when the water is warm, so with a heater your fish will grow faster
4 Plan some shade for your koi
When selecting a spot for your pond, make sure it is out of direct sunlight. Also keeping water plants like water lilies in your pond are a good idea – not only they add beauty to the overall design, but they also provide shade for the fish. However, you should avoid building your koi pond under trees. Cleaning a fish pond of fallen leaves is no fun.
5 Plan to install a bird net
There are many birds of prey that would love to steal your koi. Don’t give them the opportunity; plan your pond location so it is possible to cover it with a net.
6 Keep insecticides away from your pond
When landscaping your pond keep in mind that you should not use any insecticides or herbicides near the water. Even a small amount of common garden poison can kill your beautiful fish.
7 Get proper equipment for your pond
Several accessories are absolutely essential for a healthy koi pond. Ideally you will have to invest into a water pump, filtration system, water aerator and an ultraviolet sterilizer. If the water in your pond is still, your fish might get sick and eventually die. Koi pond filtration systems are expensive, so as an alternative you can make your own homemade filters.
About the Author: Tanya Turner is a landscaping expert. Visit
for more information about installing and maintaining koi fish ponds.