Skip to content Skip to sidebar Skip to footer

Goldfish Water Temperature Recommendation

Goldfish Water Temperature Recommendation

Goldfish are among the most common pets kept as pets. They are famous for the variety of colors and other varieties of goldfish, and they are easy to maintain. Keeping goldfish in the right water temperature is one of the essential aspects of goldfish care.

Follow these recommendations if you want to know how to keep your goldfish happy. Set up your aquarium or tank properly to maintain the optimal water temperature. Control the water temperature in the tank or aquarium if your system has automatic controls.

Goldfish Are Cold Water Fish

While goldfish are cold-water fish, the ideal water temperature for them is cold. In biological terms, goldfish can tolerate lower water temperatures than tropical fish. In actual fact, goldfish can tolerate water temperatures down to 50° F (−16° C) before sleeping or becoming ill.

But, that doesn't mean that you should keep your hardy fish in water that is still too cold. Goldfish that live in ponds can enjoy a variety of temperatures based on the season, but it is important to make sure that the pond does not freeze over during the winter.

You should be sure to safeguard your goldfish in hot climates. For instance, adding a shade to your pond, or keeping a large pond chiller will help keep your pond water cool in the summer.

What Is The Optimal Temperature For Goldfish?

So, what is the ideal water temperature for goldfish? The answer may surprise you, but goldfish do best in water on the cooler side. In general, the optimal water temperature for goldfish lies between 65 and 72 degrees F or between 18 and 22 degrees centigrade.

Goldfish are less active in cold water, so they don't need to consume as much oxygen. Colder water is also less likely to support the growth of harmful bacteria and parasites. Colder water can prevent goldfish from overheating and getting sick.

Factors Affecting A Goldfish’s Ideal Water Temperature

The optimal water temperature for your goldfish is relatively consistent, but various kinds of factors can affect what's ideal for your fish. Let's have a look at a few of these factors.

Type Of Goldfish

One of the many factors that can have an effect on the optimal water temperature for your goldfish is the type of goldfish that you have. As mentioned above, goldfish are available in several colors and sizes, but they generally fall into two categories, namely big-bodied and fancy ones.

Slim-bodied goldfish include species like the common goldfish and comet goldfish. They are more tolerable of warmer water than fancy goldfish, but you should not submerge them in hot water. If you use goldfish of the slim-bodied variety, you will most likely find them preferring water between the ranges of 55 and 75 degrees.

Fancy goldfish are not as tolerant of change. This type of goldfish includes the oranda and the bubble eye. If you have this kind fancy goldfish, you want to maintain it as close to goldfish water's optimal temperature as possible. This means maintaining water temperatures between 68 and 72 degrees Fahrenheit.

It is crucial that whatever the temperature, you make sure that it stays constant, and that you stay consistent. Sudden changes to water temperature can be stressful for your fish and may cause medical issues.


Did you know that the ideal water temperature for goldfish also differs from if those fish are breeding? If you're trying to breed goldfish, keep in mind that the water should be a bit warmer in springtime, between 68 and 74 degrees Fahrenheit.

This is because the warmer the water the faster the goldfish will lay eggs. If you're interested in breeding goldfish, you want the largest number of eggs possible, so the water temperature will need to be high. Be sure to keep the water from becoming too hot, however, as this can be detrimental to your goldfish.

If you have a fish tank with fish, you may want to use an aquarium heater to maintain a consistent water temperature throughout breeding season. This is recommended, as it ensures you have an environment that promotes healthy reproduction and growth for your fish.


Setting up a fish tank or pond is theaters for the care of your fish year-round, which includes making modifications to the water temperature depending on what time of year it is.

Goldfish can be vulnerable to sudden changes in water temperature. Because different species have different preferences, it's important to use a water heater as well as an aquarium chiller to maintain the correct temperatures for different goldfish types.

The ideal water temperature for goldfish varies depending on your kind of fish, whether you are breeding, and the climate you live in. As a general rule, the ideal water temperature is 68 to 72 degrees Fahrenheit.

What Happens If You Don’t Maintain A Comfortable Temperature?

If your aquarium water gets too cold for your goldfish, they may become lethargic and stop eating. This might allow your goldfish's disease organisms and parasites to multiply, which could lead to your goldfish's death. In the most extreme instances, goldfish can even die from exposure to cold water.

Common goldfish diseases include Ichthyophthirius multifiliis (ich), white spot disease, goldfish fungus, and swim bladder disease. These diseases can be deadly, so you must provide your fish with the appropriate framework to live a happy and healthy life. The average life expectancy of a goldfish is 10-15 years, but with proper care they can live much longer.

If the water is too hot in your pool or your fish pond, your pets can get sick. High water temperatures are a leading cause of goldfish deaths. High water temperatures can cause your fish to overheat, resulting in organ damage, nervous system problems, and death.

You may need to maintain a comfortable water temperature for your goldfish. It is very simple to do as long as you have a quality aquarium heater and or chiller.

Final Tip: Invest In A Good Water Thermometer!

We've determined that water temperature is crucial to goldfish health, but how do you know your tank or pond's temperature? The answer is simple—get yourself a good water thermometer!

There are different varieties of thermometers on the market, and you can choose one that meets your needs. For example, you might want to invest in a floating thermometer if you have a large fish pond. These devices are set in a liquid and float on the surface, making it easy to get accurate readings.

Then again, if you own a small aquarium or goldfish tank, you may want to invest in an aquarium stick-on thermometer. These devices are readily available at your local pet store, and they are simple to apply. All you have to do is stick them on the inside of your tank or pond, and they will provide you with an accurate reading of the water temperature.

Regardless of what kind of thermometer you use, it is essential to check the water temperature consistently. Ensuring a constant system temperature is crucial for the health of your fish, so you'll want to make sure to provide for the best possible conditions.

End of article

The optimal water temperature depends on what type of fish you have, whether you are breeding, and your temperature. As a general rule, you want to keep the temperature between 68 and 72 degrees Fahrenheit, though some fish tolerate wider ranges.

We hope you found this article helpful. If you have any questions or comments, please feel free to leave them below. And if you would like to know more about goldfish care, please check out our earlier articles! Thank you for reading, and good luck with your goldfish!

Post a Comment for "Goldfish Water Temperature Recommendation"