What Types of Fish Can Be Kept with Goldfish: (9 Best Mates)

Are you a proud owner of goldfish and wondering what types of fish can be kept with goldfish in their tank? Goldfish are beautiful and vibrant aquatic pets that can bring joy and serenity to any home aquarium.

While goldfish are generally compatible with various fish species, choosing their tank mates wisely is essential to ensure a harmonious and healthy environment. 

This article will explore the best companions for your goldfish, considering temperament, size, and water conditions.

How to tell if goldfish is male or female

Let’s dive in and discover the nine best mates for your goldfish! Great goldfish tank mates

Does Your Goldfish Need A Tank Mate?

If you keep goldfish as pet fish, you may wonder if they need a tank mate. Goldfish are social fish and enjoy the company of other goldfish, so having a tank mate can benefit their well-being.

However, you must ensure a large enough tank to accommodate another fish. Goldfish need a large tank to thrive; adding a tank mate can make the tank even more crowded.

It would help to keep your tank clean to provide a healthy environment for your fish. When choosing a tank mate, select a species of fish that get along well with goldfish.

Goldfish tank mates

A community tank can be an excellent option for goldfish, provided that the tank is large enough, the water parameters are suitable for all the species, and the tank is properly maintained.

Overall, having a tank mate for your goldfish is unnecessary, but it can enhance their quality of life if you properly care for both fish.

What Types of Fish Can Be Kept with Goldfish?

What Kind of Fish Can You Keep With Goldfish? When choosing tank mates for your goldfish, it is essential to consider their peaceful nature. Common goldfish, comet goldfish, and fancy goldfish are all good choices to keep with goldfish as they are all compatible. 

Goldfish like to have company, and keeping them with smaller fish, such as catfish, can also be a good idea.

However, it is important to avoid keeping aggressive fish or those prone to nipping at the fins of goldfish. It is also essential to make sure that the tank is large enough to accommodate the additional fish and that they are all getting enough food and space to live comfortably.

With careful research and consideration, many kinds of fish can be kept alongside goldfish to create a harmonious and thriving tank.

Top 9 Best Goldfish Tank Mates

Goldfish can live harmoniously with various fish species, adding diversity and visual appeal to your aquarium.

The nine best mates discussed in this article, including Catfish, White Cloud Mountain Minnow, Platy Fish, Japanese Rice Fish, Schooling Fish (Tetras), Corydoras Catfish, Rosy Barb, Bristlenose Pleco, and Corydoras Catfish, are excellent choices to consider.

Always prioritize the compatibility of temperament, size, and water conditions to create a thriving and balanced aquatic ecosystem for your goldfish and their tank mates.  

1. Catfish

Catfish, such as the famous Hoplo Catfish, are excellent tank mates for goldfish. They have a peaceful nature and can tolerate a wide range of water conditions, making them an ideal choice for your goldfish aquarium. Catfish also help to keep the tank clean by consuming leftover food and algae, promoting a healthier environment for your goldfish.

2. White Cloud Mountain Minnows

The White Cloud Mountain Minnows are small peaceful fish that can thrive alongside goldfish. They are hardy and adaptable, making them suitable for a goldfish tank. Their vibrant colors and lively nature add a touch of beauty and liveliness to the aquarium. Ensure the tank is spacious enough to accommodate both species comfortably.

3. Platy Fish

Platy fish, known for their vibrant colors and playful demeanor, can coexist harmoniously with goldfish. They are peaceful and easy to care for, making them a perfect choice for beginner aquarium enthusiasts. Platy fish also prefer similar water conditions to goldfish, allowing them to thrive together in the same tank.

4. Japanese Rice Fish

Japanese Rice Fish, also known as Medaka, make good tank mates for goldfish. They are small and have a peaceful temperament, creating a tranquil atmosphere within the aquarium. Japanese Rice Fish are hardy and adapt well to different water conditions, making them a compatible choice for your goldfish tank.

5. Schooling Fish (Tetras)

Tetras, such as Neon Tetras and Cardinal Tetras, are schooling fish that can peacefully coexist with goldfish. Their vibrant colors and shoaling behavior create a visually stunning display in the aquarium. However, it’s important to note that tetras are smaller than goldfish and may become targets for predation if the goldfish are significantly giant.

6. Corydoras Catfish

Corydoras catfish are bottom-dwelling fish that can live harmoniously with goldfish. They are known for their peaceful nature and ability to clean the tank floor by consuming leftover food and debris. Corydoras catfish prefer a similar water temperature to goldfish, ensuring a compatible living environment.

7. Rosy Barb

Rosy Barbs are active and colorful fish that can cohabit peacefully with goldfish. They prefer similar water conditions and have a peaceful temperament, making them suitable companions. Rosy Barbs add vibrancy and movement to the aquarium, creating an engaging and visually appealing aquatic environment.

8. Bristlenose Pleco

The Bristlenose Pleco, an armored catfish, is popular for goldfish tanks. They have a unique appearance with their bristle-like appendages and are known for their ability to consume algae, helping to maintain a clean tank. Bristlenose Plecos are peaceful and can coexist harmoniously with goldfish. They prefer a similar water temperature and make an excellent addition to your goldfish aquarium.

9. Corydoras Catfish

Corydoras Catfish, also known as Cory Cats, is another great choice for goldfish tank mates. These bottom-dwelling fish have a calm temperament and spend most of their time scavenging the tank floor for food. Corydoras Catfish are compatible with goldfish, and their presence adds variety and interest to the aquarium.

How to Choose an Ideal Goldfish Tank Mate?

Choosing an ideal goldfish tank mate requires careful consideration to ensure a peaceful and healthy environment for your aquatic pets. Firstly, size compatibility is crucial, as a bigger tank and larger species are required for fancier goldfish varieties.

Avoid adding smaller fish that can become prey for goldfish or be bullied by aggressive tank mates. Consider potential tank mates’ water temperature and pH level requirements, as they should be compatible with goldfish.

Opt for peaceful and docile tropical fish that are not known to disrupt or stress out goldfish. Researching and consulting with professionals or experienced hobbyists can help identify the best goldfish tank mates.

Ultimately, the tank mates you choose should add to the aesthetic beauty of your goldfish tank and not overcrowd the tank. Maintaining a balanced ecosystem with compatible tank mates is essential for your goldfish’s health and well-being. 

You can create a lively and harmonious aquatic environment by choosing any of these nine fish species as tank mates for your goldfish.

However, it’s essential to consider a few crucial factors before introducing new fish to your goldfish tank:

  • Tank Size: Ensure your tank is spacious enough to accommodate the additional fish comfortably. Goldfish require a larger tank due to their size, so consider their needs when selecting tank mates.
  • Water Conditions: Fish species have varying preferences for water temperature, pH levels, and filtration requirements. Choosing fish that thrive in similar water conditions to your goldfish is crucial to maintain a stable and healthy environment.
  • Temperament: Goldfish are generally peaceful, but some may display territorial behavior. Select fish species that have a calm temperament and are known to coexist peacefully with goldfish.
  • Size Compatibility: Avoid introducing fish significantly smaller than your goldfish, as they may become targets for predation. Ensure the size of the tank mates is compatible with your goldfish to prevent any harm or stress.

What Type of Fish Make Perfect Tank Mates for Goldfish?

When considering a tank mate for your goldfish, choosing a type of peaceful fish that won’t compete for food or territory is crucial.

Ideal tank mates for goldfish include other coldwater fish such as minnows, dojo loach, zebra danios, hillstream loach, and white cloud mountain minnows, as they can tolerate the same water conditions.

Weather loaches and catfish can also live harmoniously with goldfish but choose smaller varieties to avoid becoming too large for the tank. Avoid aggressive or territorial fish, such as cichlids, as they may bully or harm your goldfish.

You can create a peaceful and balanced aquarium environment by choosing the right type of fish as a tank mate for your goldfish.

Commonly Asked Questions (FAQs)

Can goldfish live with tropical fish?

Goldfish prefer cooler water temperatures, while tropical fish thrive in warmer conditions. Mixing them may lead to health issues and incompatible living conditions. It’s best to avoid housing goldfish with tropical fish.

What should I feed my goldfish and its tank mates?

Goldfish and their tank mates can be fed a combination of high-quality flake or pellet food suitable for their respective species. Providing a balanced diet and avoiding overfeeding is vital to maintain their health.

Do goldfish need a larger tank compared to their tank mates?

Goldfish require a larger tank because they produce more waste than smaller fish. Providing adequate space is essential for their well-being and the overall tank ecosystem.

Can goldfish be kept with aggressive fish?

Keeping goldfish with aggressive fish species is generally not recommended as it may lead to stress, injuries, or even death. Goldfish thrive best with peaceful tank mates.

How often should I clean the tank?

Regular maintenance is crucial to keep the tank clean and maintain optimal water conditions. Perform partial water changes every one to two weeks, clean the tank substrate, and ensure proper filtration. The frequency may vary depending on the tank size, number of fish, and waste production.

What types of fish can safely live with goldfish?

Several freshwater fish can make good goldfish tank mates and safely live with goldfish, including catfish, white cloud mountain minnow, hoplo catfish, and some other small fish similar to goldfish in size and temperament.

What are the best tank mates for goldfish?

The best tank mates for goldfish are usually other freshwater fish compatible with goldfish in size, behavior, and diet. Some of the best fish to keep with goldfish are bottom-dwelling catfish, mystery snails, small tetras, giant danio, guppies, and danios.

Can goldfish live with other fish in a community tank?

Goldfish can live with other fish in a community tank, but choosing compatible goldfish tank mates that won’t be eaten by or harm the goldfish is essential. Keeping goldfish with hungry and curious fish like cichlids or angelfish is generally not recommended.

What are the best tank conditions for goldfish and their tank mates?

Goldfish and their tank mates need a clean and well-maintained aquarium with good filtration and adequate space. It’s best to keep your goldfish and their tank mates in a larger tank with plenty of swimming room, hiding spots, and natural decor to mimic their natural habitat.

Can goldfish be kept with smaller fish?

Goldfish can be kept with smaller fish that are suitable goldfish tank mates as long as they are safely living with goldfish and won’t be eaten by the goldfish. To save smaller fish with goldfish, provide plenty of hiding spots and feeding areas to avoid conflicts or aggression between the fish.

What are some good fish to keep with larger goldfish?

Some of the best fish to keep with larger goldfish are larger freshwater fish like koi, Oscars, or pacus. It’s essential to keep your aquarium and its environment suitable for these larger fish and to avoid overcrowding the tank.

Can goldfish companions be kept in groups?

Many goldfish companions can be kept in groups or schools for their social and behavioral needs. The best fish to keep in groups with goldfish include tetras, barbs, and rasboras.

Are there any freshwater fish that goldfish will eat?

Yes, goldfish are omnivorous and may eat smaller fish kept in their aquarium, especially if they are hungry or not adequately fed. Living with goldfish and providing them properly and safely is vital to avoid this.

Where should I keep my goldfish tank?

Keeping your goldfish tank in an excellent environment with stable water conditions and a suitable temperature range is essential. Avoid placing your goldfish tank near direct sunlight, heat sources, or cold drafts, and choose a quiet and stress-free area for your fish to thrive.

What should I consider when finding suitable goldfish tank mates?

When finding suitable goldfish tank mates, consider factors like the fish’s size, temperament, and behavior, as well as their food and environmental needs. Researching and choosing compatible goldfish companions that won’t harm or stress your goldfish is essential.


So, what types of fish can be kept with goldfish? Choosing suitable tank mates for your goldfish is essential for creating a harmonious and thriving aquatic environment. While goldfish can be kept alone, adding compatible fish species can enhance the beauty and dynamics of your aquarium. Remember to consider factors such as temperament, size compatibility, and water conditions when selecting tank mates. The nine best mates for goldfish discussed in this article offer a range of options, from catfish and minnows to barbs and plecos.

These fish species are known to coexist peacefully with goldfish, providing visual interest and additional benefits such as algae control and bottom-dwelling scavenging. Always research and understand the specific care requirements of each fish species before introducing them to your goldfish tank. Provide ample space, proper filtration, and a well-balanced diet for all the inhabitants. Regular monitoring, maintenance, and attention to water quality will contribute to your fish community’s overall health and longevity.

Remember to regularly monitor the behavior and health of your goldfish and its tank mates. If you notice any signs of stress, aggression, or illness, take appropriate action and seek advice from a knowledgeable aquarium specialist. Proper planning allows you to create a vibrant and harmonious community tank with your goldfish and compatible tank mates.

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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