Can Guppies Live In A Pond? Will The Harsh Weather Kill Them?

Guppies are small and colorful fish that make great pets for beginners fishkeepers. Guppies are livebearers, which means that they don’t lay eggs. Instead, they give birth to live baby guppies. Guppies multiply at a fast pace, and can soon overrun a common 10 gallon fish tank with new baby guppies. So, can guppies live in a pond?

Yes, guppies can live in a pond under the right circumstances. Guppies are easy to care for and are hardy fish. They can survive in varying water conditions. So, minor changes in the weather that disrupt the pond water won’t affect guppies. And, you can always opt to use a heater to keep the water temperature stable for the guppy fish.

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Guppies are excellent choices for small ponds in the garden or elsewhere. This way, they will grow faster and be happier. It’s not a good idea to keep guppies in outdoor ponds that will experience cold winter months where they may not survive.

They are tropical fish and are accustomed to tropical weather like in St. Vincent or Barbados (in the Caribbean).

Can Guppies Live In Cold Water Pond?

The minimum water temperature for guppies is 72 °F (22 °C). For a short period of time, 1-2 days, guppies can withstand water temperatures as low as 65°F (18 °C), but the chances of developing diseases are very high. Offering your guppies a stable water temperature is the best way to keep your fish healthy.

Keeping guppies in pond water that is too cold will make them sluggish. Guppies will stop reproducing and become susceptible to disease and die. 

Can I Use A Heater To Keep Guppies Warm?

Using a water heater in an outdoor pond can be expensive and problematic. If you do not live in a tropical climate, you can use a water heater to keep the fish tank temperature stable.


Guppies need a water heater if the temperature in your area usually drops below 68 degrees. Likewise, proper aeration is essential.

Without the water heat, they can become stressed, their immune system weakens, and they die from diseases.

Besides the temperature, there are other things you have to take note of when preparing the pond for your guppies.

No matter the size of the guppy pond, you need a filter. A pump and filter are more than enough to keep the pond clean and disease-free.   If you need to install a  small waterfall or mini fountain, you only need to ensure that the currents created by the fall aren’t too strong.

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Live aquatic plants add to the beauty of the pond. But, they also help filter waste and produce oxygen. Plants can also help reduce the strength of the water flow.

Sunlight is good for guppies’ growth and general health. Partial sun is best as direct sunlight can increase the water temperature too high.

On food, pond guppies will eat mosquito larvae and algae. But, you also need to supplement their diet with tropical flakes to keep them healthy.

Other Things To Consider When Keeping Guppies In A Pond

Guppies can jump out of the water. They are excellent jumpers too, so a net over the top might be a good idea. Nets can also stop predators from attacking or eating your guppies.

Guppies are schooling fish, which means that they come together when threatened. If you don’t use a net, placing several guppies in the pond can increase their chances of survival.

Using a net can also filter debris. The net catches falling leaves, twigs, etc. keeping the water clean. The less waste that enters your pond, the easier it is for the filter to keep clean.

Can Guppies Live In A Koi Pond?

Because guppies breed so fast, putting them with a predatory fish like koi can help to keep the population under control. However, if the majority of the population in the pond is filled with big Koi, they can easily wipe out your entire guppies population. Other better ways to handle their growing population include giving them to friends or selling any excess.


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