Can Goldfish Live In Warm Water? The Shocking Facts Here!

Last Updated on April 30, 2022 by Marco C.

Can goldfish live in warm water? Find out all you need to know about raising goldfish here.  

Goldfish are a popular pet for every American household.  Their shining bright color makes them an attractive fit in a fish tank.  

They are also pretty easy to raise.  As with any fish, you need to do research before raising them.  Each fish has different living requirements.  

It is up to you, the owner, to make sure that your fish’s needs are met. Among other things, water temperature is an important factor to consider.  If you are raising a tropical fish in a cold climate, you will need to use a tank heater to make sure the water stays warm enough.  

But, can goldfish live in warm water?  We will teach you all you need to know to set up the perfect goldfish tank!  If you follow this article you will be raising goldfish successfully in no time. 

Keep reading now to get started!

Why Are Goldfish So Popular In Aquaponics?

The scientific name for goldfish is Carassius auratus and it is a freshwater fish native to North America.  If you want to understand how to raise a fish, you need to look at their natural environment. Since goldfish are from North America, you can assume that they like colder water.

Most people raise goldfish in an unheated tank.  The optimum temperature for goldfish is between 68 to 74 degrees Fahrenheit.  Water temperature is very important because it affects the fish’s metabolism.

Why Are Goldfish So Popular In Aquaponics

Learn more about: How Many Goldfish Per Gallon Of Water? All Your Answers Here!

Metabolism is the rate at which blood flows throughout the fish and how fast they process food.  If the water temperature gets too cold, your fish will not be able to absorb proper nutrition from food.  This will ultimately result in the death of your fish.

On the other hand, if your water is too hot, your fish’s vital functions may cease to work.  It is up to the fish tank owner to find the sweet spot. 

Always observe your fish’s behaviors.  If you notice them swimming slowly, it is a sign that your water is too cold. 

So you might be wondering: Can goldfish live in warm water?  The short answer is, yes, it is possible for goldfish to survive in warm water.  However, it is not ideal for them to thrive.  

Keep in mind that as the tank water warms up, the fish’s metabolism will speed up.  This means that they will require more food because they will get an appetite more quickly. 

That being said, try not to let your tank water temperature exceed above 78 degrees Fahrenheit.  At that point, it will become a danger to the fish. 

Best Plants To Grow With Goldfish Aquaponics

According to Oregon State University, “You can raise goldfish in an aquaponics system to provide fertilizer for plants.” Goldfish produce high amounts of excretion.  The more feces that is produced, means the more fertilizer for your vegetables!

This is why aquaponics is a very efficient system.  You can grow many different plants with goldfish.  Some popular ones are herbs like basil, mint, parsley, or coriander.  

It is also good to grow fruiting vegetables like tomatoes, eggplants, or corn.  In order to choose which plants to grow you need to consider a few things.

First off, think about how much space you have available.  Each plant has different growing requirements.  One of those things is soil depth.  Larger plants require a deeper grow bed.

If you do not have a lot of space, stick to growing shallow-rooted varieties like lettuces and herbs.  

Overall, you have a lot of freedom when raising goldfish in your aquaponics system.  Feel free to play around with different vegetables to see which one works best with your fish.  

Keep in mind that whenever you raise a fish, it is your responsibility to keep them alive.  Many irresponsible fish owners end up killing their goldfish within year one.  

However, if you provide the right conditions, goldfish can live up to 10 years!  Make sure you keep a clean tank.  In order to do this, perform water changes on a weekly or bi-weekly basis.

Try to change out at least 25% of the water and replace it with clean water.  When your tank water gets too dirty, your goldfish will not be happy. 

Also, make sure to prevent your tank from getting overcrowded.  If your goldfish are reproducing, you may need to remove some of the small ones and put them in another tank.  

A usual rule is to keep 1 inch of fish per gallon.  Goldfish grow up to 4 inches.  

Hopefully, now you understand the answer to the question: can goldfish live in warm water?  As long as you keep the right conditions for your goldfish, you should have no problem keeping them alive.  Have fun and enjoy their beautiful colors!

Feel free to comment and ask questions below!

Read more about: The Top Tips On How To Cycle A Fish Tank With Goldfish


Can I use goldfish in aquaponics?

Yes, goldfish are a very popular fish to use in aquaponics because they have a beautiful color and provide great fertilizer for your plants.

What temperature is best for aquaponics?

The best temperature for aquaponics depends on the type of fish you want to raise. For goldfish try to keep a tank temperature of between 68 to 75 degrees fahrenheit.

What are good plants to grow in an aquaponics system with goldfish?

You can grow many types of plants with goldfish aquaponics. Some good picks are lettuce, basil, coriander, tomatoes, eggplant, or corn. The most important aspect to consider is how much space you have to build your grow beds. This will determine which vegetables will be suitable to grow. Keep in mind that many plants require at least 6 hours of sunlight a day. You need to make sure that your grow beds have access to full sun.

Why goldfish are the most popular fish to use for aquaponics?

Goldfish are the most popular fish for aquaponics because they have been raised by humans for many years. In fact, goldfish were some of the first fish that humans started to raise in fish tanks. They have brilliant colors, are relatively easy to raise, and produce good fertilizer for your plants. You can’t go wrong with using goldfish in aquaponics.