Can Betta Fish and Goldfish Co-exist? Unveiling the truth! (2024)

Have you been thinking about getting a Betta fish for your Goldfish aquarium? You may have heard that these two species cannot live together, but is that really the case?

It is true that Betta and Goldfish have different needs and can become an unbalanced combination. However, with the correct aquarium setup, they can live in harmony together in the same tank. In this blog, we’ll discuss the history of these two species, whether they can really be kept together, what requirements it takes to do so, the advantages and disadvantages of such a combination, instructions for their introduction, potential health issues to consider, and the benefits of having them both in the same tank.

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Introduction – What are Betta Fish and Goldfish?

  • Betta Fish

Betta Fish, or Siamese fighting fish, are tropical freshwater Fish indigenous to Southeast Asia. These tropical fish have a reputation for their amazing colors and long fins, which come in various hues like red, blue, green, and purple. Bettas are fiercely protective of their territory, and if males are kept too close to one another, they can become aggressive. Additionally, they can endure low oxygen levels, making them a popular pick for small tanks or bowls.

Betta Fish
  • Goldfish

Goldfish are a species of Fish primarily found in East Asia and are known for their wide range of colors and patterns, like orange, red, white, and black. For centuries, these Fish have been kept as pets and are believed to be a sign of good fortune in different cultures. Additionally, they are strong and capable of adjusting to new environments, which makes them an ideal choice for people new to keeping Fish. Plus, they do not require much work and can live for a long time if given the proper care.


Betta Fish and Goldfish are both these two fish are popular choices for keeping aquarium pets. Bettas are known for their bright colors and lengthy fins, with Goldfish, are renowned for their strength and ability to adjust. To guarantee both species have a good quality of life, they need clean water and suitable living conditions. Bettas prefer living in small tanks or bowls, while Goldfish require larger habitats with adequate filtration.

Can Betta Fish and Goldfish Co-exist Unveiling the truth

History of Betta Fish and Goldfish:

Bettas have been around for a long time in Southeast Asia, where they were first seen. They originated in the paddy fields and wetlands of Thailand, Laos, and Cambodia. In these natural environments, Bettas gained the skill to live in low oxygen levels, making them perfectly suitable for inhabiting small pools or rice paddies.

In the 1800s, Bettas were brought to the Western world by European travelers who captured them alive to show in their fish tanks. Soon, these Fish became a much-loved pet, and by the beginning of the 20th century, Bettas were being cultivated in captivity to produce vivid colors and long fins.

For more than a millennium, Goldfish have been popular pets in China and were brought to the West by European traders in the early 1700s. Goldfish were thought to bring good fortune and were kept in both large ponds and special aquariums. By the 1800s, these Fish had become beloved pets in Europe and were bred in various colors and patterns.

History of Betta Fish and Goldfish

The frequency of water change in an aquarium depends on the fish’s size and population. Switching out a minimum of 10-20% of the water every week is recommended. Water changes will likely need to be carried out more frequently for larger tanks that house a greater number of fish. It is imperative to test the water often and ensure it is pure and free of contaminants.

Can Betta Fish live with Goldfish?

Can Betta Fish live with Goldfish?

Even though it is technically possible to have both Betta fish and Goldfish in the same tank, making them tank mates is not a good idea due to a few critical factors.

  • Firstly, Bettas live in a pretty protective state for their environment and can become hostile towards other Fish that they consider a nuisance. This can lead to the Goldfish being harassed or even killed. Additionally, Bettas tend to puff up their fins which can be a source of stress and suffering for the Goldfish.

  • Secondly, Bettas prefer warm water temperatures between 76-82°F while Goldfish favor cooler temperatures ranging from 65-72°F. Keeping them in the same tank is quite challenging as one needs to put in a lot of effort to ensure that the environment is suitable for both species, which can be exhausting and time-consuming.

  • Thirdly, Goldfish are known to create a lot of mess and need a lot of space and a filter. In comparison, Bettas are ideal for small tanks or bowls, which may be better for Goldfish. Additionally, Bettas need a lot of oxygen in the water, which may be restricted by the waste of the Goldfish.

  • Finally, Bettas and Goldfish have distinct dietary requirements. Bettas are carnivores and need a diet rich in protein, while Goldfish are omnivores and require a diet high in vegetable matter.

It’s not advisable to house Betta Fish and Goldfish together in the same aquarium. The varying habitat and nutrition requirements of each species make it difficult to give them both the appropriate living conditions. It is wiser to keep them in separate tanks with situations that are suitable to the particular species. This way, each species can do well and live content and healthy life.

What are the Requirements for Keeping Betta Fish and Goldfish Together?

Keeping Betta fish and Goldfish in the same aquarium is not advisable because their needs are distinct, potentially leading to danger for each other. On the other hand, if you still want to house them together, there are definite prerequisites that must be met to provide a comfortable habitat for both species.

  • Tank size:

    To keep goldfish healthy requires a tank containing at least 40 gallons of water to make space for its growth and the waste it produces. However, a betta tank can easily be on the smaller end at 5-10 gallons.

  • Temperature:

    To keep a betta at its healthiest, its water should be kept warm, in the range of 76-82°F. On the other hand, Goldfish are more comfortable in cooler temperatures of 65-72°F. To ensure that your aquatic buddies live in their ideal environment, you’ll need to install either a chiller or a heater.

  • Filtration:

    Goldfish generate a great deal of pollution, so a robust filter is essential to maintain the water in a clear and hygienic state. Furthermore, betta fish need high oxygen levels, so a strong aeration system is a must.

  • Diet:

    Bettas are carnivorous, meaning they need a protein-rich diet, while Goldfish food is omnivorous, requiring a diet that includes a good amount of plant-based food. So, you need to have different meals for each type of Fish.

  • Lighting:

    For optimal viewing, Goldfish need to be kept in an area with minimal illumination, whereas Bettas will bring out their vibrant colors best when held in a room with moderate lighting.

  • Space:

    To wrap things up, it’s quite a challenge to house Betta fish and Goldfish together. It takes a lot of hard work and resources to satisfy each type of Fish’s needs. Therefore, placing them in separate tanks that offer the ideal conditions for each of them is wise.

To wrap things up, it’s quite a challenge to house Betta fish and Goldfish together. It takes a lot of hard work and resources to satisfy each type of Fish’s needs. Therefore, placing them in separate tanks that offer the ideal conditions for each of them is wise.

The Pros and Cons of Keeping Betta Fish and Goldfish Together:

The Pros and Cons of Keeping Betta Fish and Goldfish Together:

Maintaining Betta Fish and Goldfish in the same habitat has advantages and drawbacks. 

  • PROS
  • Diversification:

    Having distinct kinds of Fish in the same tank could bring a vibrant look and diversity to the aquarium

  • Concord:

    Bettas and Goldfish are usually tranquil species and could co-exist peacefully if their requirements are fulfilled.

  • Cost-effective:

    Keeping a number of species in the same container can be economical as it mitigates the need for extra tanks and supplies.

  • CONS
  • Territorial Tendencies:

    Betta fish have a highly territorial nature and may turn hostile towards Goldfish, leading to bullying or fatality

  • Temperature:

    Bettas need warm water, while Goldfish favor cooler water, making it hard to ensure ideal conditions for both kinds of Fish.

  • Diet:

    Bettas are carnivorous and need lots of protein in their diet, while Goldfish are omnivorous and require large amounts of vegetation, making it tough to offer the proper nutrition for each species.

  • Space:

    Goldfish can become really large, needing lots of room, whereas Bettas can be kept in smaller tanks or bowls, making it complex to offer a suitable habitat for both species.

  • Filtration:

    Goldfish discharge a lot of waste, which can be damaging to Bettas and necessitate powerful filtration mechanisms to keep the water clean and clear.

It can be fascinating to keep Betta Fish and Goldfish in the same aquarium, but this comes with its difficulties and dangers. To guarantee the best health and happiness for both types of Fish, it is wiser to provide them with their own tanks that meet the specific needs of each species.

How to Introduce Betta Fish and Goldfish to Each Other:

How to Introduce Betta Fish and Goldfish to Each Other:

If you’re planning to introduce Betta Fish and Goldfish to one another, it’s essential to proceed with caution and take it slow to reduce any chances of hostility or harm. Here are some tips for you to consider:

  • Kick-off with a period of isolation:

    Before introducing the Fish to each other, take the time to quarantine both varieties for a minimum of two weeks to ensure they are in good shape and free from any sickness.

  • Establish the aquarium:

    To ensure the success of both species, set up the tank with the required temperature, filtration, and lighting. Additionally, make sure to add lots of cover and vegetation for the Betta to feel safe.

  • Introduce the Fish one at a time:

    Begin the process slowly by adding the Goldfish to the tank and giving them time to become accustomed to their new environment. After they have adjusted, they introduce the Betta to the aquarium.

  • Keep an eye on their behavior: 

    Observe both animals and be on the lookout for any behavioral indications of stress or hostility. If the Betta displays aggression towards the Goldfish, make sure to divide them right away.

  • Gradually increase time together:

    Gradually build up their time spent together; when the Fish become adjusted to one another, it’s time to slow up the amount of time they’re hanging out.

  • Provide different feeding areas:

    To ensure that both bettas and Goldfish have their nutritional needs met, it’s essential to have different zones for feeding each type of Fish. This way, they don’t have to fight over food.

  • Regular water changes:

    Keeping up with routine water replacements is essential to make sure the aquarium is sparkling clean and oxygen-rich, an environment that will keep your Bettas healthy and happy.

When considering the combination of Betta Fish and Goldfish, it is essential to remember that it can be a difficult task that requires a great deal of energy and supplies to satisfy the diverse requirements of each species. Reach out to a specialist or vet for directions and advice on bringing them together and keeping them in the same tank.

Health Issues to Be Aware of When Keeping Betta Fish and Goldfish Together:

Health Issues to Be Aware of When Keeping Betta Fish and Goldfish Together:

Being conscious of the potential health problems that can occur when housing Betta fish and Goldfish is an essential factor to consider.


  • Keeping Bettas and Goldfish in separate tanks before bringing them together is essential, as these species are vulnerable to several illnesses which can be passed from one to the other. For this reason, monitoring their health vigilantly when they are in the same tank is important.


  • When setting up a home tank, it is essential to remember that bettas need warm water temperatures ranging from 76-82°F, while Goldfish prefer cooler water temperatures between 65-72°F. If these temperatures are not met, it can cause stress and other health problems for both kinds of Fish.

Water Quality:

  • Goldfish are notorious for producing vast amounts of waste, so it’s necessary to have an efficient filtration system to maintain the water’s clarity. On the other hand, Bettas need a high oxygen level to remain healthy, so it’s imperative to double-check the water quality and ensure it’s suitable for both fish species.

Compatible water hardness and pH:

  • There’s a notable contrast between bettas and Goldfish when it comes to their aquatic needs. While bettas require a softer texture of water with a slightly acidic pH, Goldfish are more at ease in a neutral to a slightly alkaline environment.


  • Bettas can be quite protective of their space, so they must have a place to retreat to avoid undue stress. Goldfish can also be quite vulnerable to stress, so if the Betta is continually causing it trouble, its health could be in danger.


  • Bettas and Goldfish are equally vulnerable to parasites like ich, which can be rapidly distributed between these two kinds of Fish. To prevent the transmission of parasites, it’s important to do regular water changes and keep an eye on the well-being of both varieties.


  • bettas are notorious for their hostility towards other Fish, so it’s essential to keep an eye on both types of creatures to prevent any attacks on the Goldfish. If necessary, it’s wise to give the Fish some distance.

Paying attention to the wellness of both Bettas and Goldfish is extremely important, and if any problems occur, it is essential to act quickly. Carrying out regular water changes and keeping tabs on their health can help to prevent the spread of illnesses and parasites. It is best to consult an expert or a vet for assistance and advice on maintaining the Bettas and Goldfish living in harmony.

The Benefits of Keeping Betta Fish and Goldfish Together:

The Benefits of Keeping Betta Fish and Goldfish Together:

Although it may be challenging to house Goldfish and Betta Fish together, certain advantages are worth considering.

  • Variety:

    Incorporating various breeds of small Fish into the same aquarium can make for a captivating sight and provide a variety of species.

  • Natural behavior:

    Bettas boast colorful hues and vibrant fins, while Goldfish are known for their exquisite fins and graceful swimming. Keeping them together allows you to witness each type of Fish’s natural behavior.

  • Socialization:

    Fish are social creatures and flourish in other Fish’s presence. Keeping Bettas and Goldfish together allows them to communicate and socialize with one another, which can benefit their overall well-being.

  • Educational:

    Having multiple species of Fish in the same tank can be a learning experience for both children and adults, teaching them about each Fish’s distinct needs and behaviors.

  • Cost-effective:

    Keeping multiple species of Fish in the same aquarium can be more economical, as you can buy one tank and set of equipment instead of several

  • Provide different feeding areas:

    To ensure that both bettas and Goldfish have their nutritional needs met, it’s essential to have different zones for feeding each type of Fish. This way, they don’t have to fight over food.

  • Regular water changes:

    Keeping up with routine water replacements is essential to make sure the aquarium is sparkling clean and oxygen-rich, an environment that will keep your Bettas healthy and happy.

It’s essential to remember that when taking advantage of these advantages, specific duties come with them, such as providing a suitable environment, diet, and water quality for both species. It also takes a great deal of work and resources to make sure that the Bettas and Goldfish can live in harmony. If you need help or direction on how to keep Bettas and Goldfish together, it’s best to reach out to a professional or a vet.


Is it possible for Betta Fish and Goldfish to live together? Yes, the two species can cohabitate harmoniously with suitable habitats and care.

However, it is important to note that they have different needs and can create an unbalanced system if not properly taken care of. When introducing a Betta and Goldfish together to an existing tank, research and comprehend the requirements to keep them healthy and safe. Ensure the aquarium is spacious, the water parameters are suitable, and you provide the right food.

On top of that, ensure the tank is well-planted and well-maintained and monitor it closely. By doing this, you can create an excellent atmosphere for both Betta and Goldfish. Visit our website to learn more about fish keeping and get helpful tips, such as product reviews and top-ranking lists


Will a betta fish eat a goldfish? 

No, a betta fish won’t eat a goldfish. Betta fish are carnivorous fish that usually feed on small insects, worms, and crustaceans in the wild. They typically won’t eat goldfish, as bettas are much smaller and goldfish are typically too big for them to fit in their mouths. 

That being said, it’s important to understand that bettas are very territorial and aggressive fish. If you put a betta and a goldfish in the same tank, the betta could see the goldfish as an intruder and attack it. Even though they won’t actually eat the goldfish, they could still do serious harm to it.

In conclusion, while a betta fish may not eat a goldfish, it’s still not recommended to house them together in the same tank.

Can goldfish live together?

Yes, goldfish can live together! While it may not always be the best option, there are a few things you can do to make it work. 

First, you’ll need to make sure you have the right size tank. Goldfish need plenty of space to swim and grow. A good rule of thumb is a ten gallon tank per fish.

Second, goldfish are social creatures, so they benefit from having companions. Having at least two goldfish in a tank will help keep them happy and healthy. 

Third, you’ll want to make sure you have the right water temperature. Goldfish prefer cold water and do best between 60-75 degrees Fahrenheit. 

Fourth, you’ll need to keep the tank clean and provide a healthy diet. Goldfish love live food like brine shrimp, bloodworms, and daphnia. 

Lastly, you’ll need to pay close attention to your fish for signs of illness or aggression. If your fish are fighting or showing signs of stress, it may be time to separate them into different tanks. 

Overall, goldfish can live together in the same tank if done properly. With the right size tank, water temperature, diet, and attention to their behavior, your goldfish can enjoy the company of their tank mates!

Will a Betta Fish Kill a Goldfish?

The short answer is, yes, a Betta Fish can kill a Goldfish. Betta Fish are very aggressive and territorial and can be quite dangerous when placed in the same tank as a Goldfish. Goldfish are usually quite docile and will not fight back if provoked by a Betta Fish.

This can leave them vulnerable to attack from the Betta Fish, which could result in the death of the Goldfish. In addition, Goldfish require a lot of space to swim around and be comfortable in their tank, whereas Betta Fish are much smaller and can get stressed if they don’t have enough space.

The best thing to do if you’re considering placing a Betta Fish and a Goldfish in the same tank is to ensure that you have a large enough tank with plenty of space for both types of fish. Additionally, you should make sure to provide enough hiding places for both fish so that they can retreat from one another if need be.

On the whole, it’s generally not recommended to place both fish together due to the risk of aggression and injury. If you do decide to take the risk, just be sure to take the necessary precautions to ensure that both fish are safe and comfortable in their environment.

What’s the Best Goldfish Tank Setup?

Setting up the best goldfish tank depends on a few factors, such as the size of fish and the type of tank you’re using. If you’re not sure what to do, here’s a step-by-step guide to setting up the perfect goldfish tank.

First, you’ll need to find the right tank. For a single fish, a 10-gallon tank is generally recommended. If you plan on having multiple fish, you’ll need a larger tank – 30-50 gallons should be enough for most goldfish. 

Once you’ve got your tank, you’ll need to fill it with water and add an appropriate filter. Goldfish are messy fish, so this is an important step! A good filter should be able to handle the waste produced by your fish.

After that, you can begin adding decorations and other items to your tank. Rocks and plants can help create a natural environment for your fish, while also providing places for them to hide and explore. Adding some gravel or sand will also help keep your water clean. 

Finally, it’s time to add your goldfish! Make sure you get the right variety for your particular tank – some types of goldfish require larger tanks than others. You may also want to add some other fish or invertebrates to create a balanced ecosystem in your tank. 

With these steps, you should be able to create a comfortable home for your goldfish! Just remember to keep up with regular maintenance, such as changing the water and cleaning the filter, in order to keep your fish healthy and happy.

So, can goldfish eat betta fish food?

No, goldfish should not be fed betta fish food. While both goldfish and betta fish are considered tropical fish, the nutritional needs of each fish are very different.

Betta fish food is specifically formulated to meet the dietary requirements of betta fish, which are often carnivorous, while goldfish are usually herbivores. Betta fish food is also typically higher in protein than goldfish food. 

Goldfish need a diet that is high in fiber and low in protein, as too much protein can cause digestive issues for goldfish. In addition, betta fish food may contain ingredients that are not safe for goldfish to consume, such as dyes and other additives.
It is best to stick to a diet specifically formulated for goldfish to ensure that they get all of the nutrients they need and stay healthy. If you are looking for a food that can be used to feed both goldfish and betta fish, look for a product that is labeled as suitable for both species.

Do goldfish and betta fish get along?

The short answer is no, goldfish and betta fish are not compatible tank mates. While it’s true that both species are freshwater fish, their different needs and behaviors mean that it’s best to keep them in separate tanks.

Goldfish are cold-water fish, while betta fish prefer warmer water. Goldfish require a larger tank with plenty of space to swim, while betta fish prefer smaller, shallow tanks. Goldfish also produce more waste than betta fish, which means they require more frequent water changes and a higher-quality filter.

Goldfish can also be quite aggressive, especially when they become territorial. Betta fish are also territorial, so when you put them in the same tank they could end up fighting and potentially injuring each other.

If you’re looking for tank mates for your goldfish or betta fish, you should look into other species of cold water or warm water fish that are compatible with each other. Popular options include tetras, guppies, corydoras, and gouramis. Always do your research before adding any new fish to your tank!

What kind of fish can live with a betta?

Unfortunately, the answer is none. Bettas are very territorial and aggressive fish, so they cannot be housed with other fish.

This is especially true of other bettas, as they will fight to the death when housed together. Even if you have a large tank with plenty of hiding places and decorations, the betta will still be too aggressive to live with other fish. 

The only exception is if you house your betta in a species-only tank, meaning you would only have one type of fish in the tank. Even then, you would need to make sure the other fish were not of the same gender as your betta, as they could still become aggressive. 

If you are looking for fish to add to your betta’s tank, there are some invertebrate options such as snails and shrimp. These creatures can live peacefully with a betta, but you still need to make sure you do your research on compatible species first. 

Can Betta Fish Live With Turtles?

The short answer is no, betta fish cannot live with turtles. Although some people have kept them in the same tank, it can be dangerous for both animals. 

Betta fish, also known as Siamese fighting fish, are very territorial and aggressive. They need plenty of space to move around and will fight other fish if they feel threatened. On the other hand, turtles are slow-moving creatures that require a lot of space and love to explore their environment.

If a betta fish and a turtle were put in the same tank, there would likely be a conflict between them due to their different needs and behavior.

Also, turtles are much larger than betta fish and may mistake them for food. Turtles may try to eat the smaller fish, even if they are not hungry. In addition, turtles can carry several diseases that can be fatal to fish, so keeping them in the same tank is not a good idea.

In conclusion, betta fish should not be kept with turtles in the same tank. It is not safe for either animal and could lead to serious illness or injury.

Can I keep goldfish and Bettas together?

The short answer is no, you should not keep goldfish and bettas together. While these two fish may look similar and have some things in common, they actually have quite different needs.

Goldfish are cold water fish, meaning that they should be kept in cooler water than bettas. Goldfish also produce a lot of waste, which means that their tanks need to be larger and have more filtration than a betta tank.

Bettas, on the other hand, are tropical fish that need warm water and lots of hiding places. They can be territorial and aggressive, so they should not be kept with other fish that look similar to them (such as goldfish). Additionally, because of their more sedentary lifestyle, they need less filtration and smaller tanks than goldfish.

Ultimately the best thing to do is to keep your goldfish and bettas in separate tanks. This way they can each get the environment they need to thrive and neither will be harmed or stressed by the other.

which fish will try to nip Betta? Is it healthy for your fish?

When it comes to Betta Fish, it’s important to be aware of the types of fish that may try to nip them. Unfortunately, many types of fish are known to nip at the fins and tails of Betta Fish, and this can be quite damaging. 

The most common culprits are other aggressive fish, such as Tiger Barbs, Oscar Fish, and Angelfish. These fish tend to be territorial and can become aggressive if they feel threatened. Even smaller fish such as Danios, White Cloud Mountain Minnows, and Guppies can become aggressive towards a Betta.

It’s important to note that nipping is not healthy for your fish. Nipping can cause distress, stress, and even injury to the Betta. In addition, it can cause infection if the Betta’s scales are damaged by the nipping. If you have other fish in your aquarium with your Betta, you should closely monitor them for any signs of aggression.

If you notice that your other fish are trying to nip at your Betta, it’s best to remove them from the tank. You can also add plants or decorations to the tank to provide shelter and hiding places for the Betta. This will help reduce the chance of aggression between your fish. 


Aaron White

Senior Editor at

I am a passionate writer for FishyFishPet, a website dedicated to helping fish pet owners of all levels learn about the best practices for caring for their aquatic companions. On our site, you’ll find a wealth of information on everything from choosing the right fish species to setting up a healthy and thriving tank ecosystem. Whether you’re just getting started with fish ownership or you’re an experienced aquarist looking to expand your knowledge, FishyFishPet has something for everyone. Thank you for stopping by and I hope you find our site helpful and informative.

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