The Ultimate Guide to Finding the Best 5 Gallon Tank for Betta Fish! (2024)

Betta fish are one of the most visually stunning fish you can keep, with their bright colors, flowing fins, and fiery personalities. However, these fish need plenty of space to thrive. While some beginners may believe that smaller tanks or bowls are adequate, a 5-gallon aquarium is the minimum recommended size for a Betta’s home.

Providing your Betta with a larger tank not only gives them more swimming space, but also reduces stress and allows for proper filtration and maintenance. The best 5-gallon fish tank will offer views of your fish from multiple angles, making it a great size to set up a Betta fish tank that showcases the beauty of the fish you want to keep.

Discover the benefits of a 5 gallon Betta fish tank and find the best 5 gallon Betta tank for your fish with our expert guide, which also includes tips on fish food and tank setup.

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Factors to Consider When Choosing a 5 Gallon Tank for Your Betta

As you set out to find the best 5 gallon tank for your Betta fish, several crucial factors must be considered. In addition to your Betta’s filtration and aeration needs, it’s also essential to carefully consider the tank’s size, shape, and material. Finally, don’t forget to research and select compatible accessories and equipment to create the optimal living environment for your Betta. Let’s explore each of these factors in more detail to help you make an informed decision when selecting the Best 5 Gallon Tank for Betta Fish.

Factors to Consider When Choosing a 5 Gallon Tank for Your Betta
Factors to Consider When Choosing a 5 Gallon Tank for Your Betta

Size and shape and material considerations:

  • Betta fish need at least 5 gallons of water. A tank that’s too small can be harmful to their health, while a tank that’s too big can be hard to maintain.
  • Choose a wider, rectangular tank to provide ample swimming space for your Betta and avoid narrow or tall tanks that may limit their movement.
  • For your Betta’s safety, choose a durable tank made of either glass or acrylic. Glass is scratch-resistant, while acrylic is lightweight.

Filtration and aeration needs:

  • A clean and oxygenated environment is essential for Betta fish. Filtration and aeration systems can keep the water toxin-free and oxygenated.
  • Consider a filter designed for a 5-gallon tank with a low flow rate to avoid overwhelming your Betta.
  • You can oxygenate your Betta’s water using an air stone or a filter that provides aeration.

Compatible accessories and equipment:

  • There are a variety of accessories and equipment that can enhance your Betta’s tank, but it’s important to choose ones that are compatible with your tank and with each other.
  • Decorations like plants and hiding spots can provide your Betta mental stimulation and stress relief. Just be sure to choose plants that are safe for Betta fish and avoid decorations with sharp edges or small openings that your Betta could get stuck in.
  • Heaters can help maintain a consistent water temperature, which is important for Betta health. Look for a heater designed for a 5-gallon tank and use a thermometer to monitor the temperature.
  • Thermometers, water test kits, and algae scrapers are other useful accessories to consider.

Best 5 Gallon Tanks for Betta Fish

When it comes to finding the perfect 5-gallon tank for your Betta, there are a few great options to choose from. One of the best tanks on the market is the Marineland Portrait Glass LED aquarium kit. This tank is made of durable glass and has a sleek, portrait design that looks great in any room. Another excellent choice is the Fluval Spec V aquarium kit, which comes with a powerful filtration system and adjustable LED lighting.

The Aqueon LED MiniBow aquarium kit is another great option, featuring a stylish bow-front design and a quiet filtration system. Whichever tank you choose, make sure it meets the necessary size and material requirements, and is compatible with any accessories or equipment you plan to add.

Best 5 Gallon Tanks for Betta Fish
Best 5 Gallon Tanks for Betta Fish
  • Marina LED Aquarium Kit

If you’re a beginner looking for the best 5-gallon fish tank for your Betta, the Marina LED Aquarium Kit is a great option. This all-in-one kit includes a clear glass tank with a plastic lid for easy maintenance and feeding. The LED light provides a natural daylight effect, while the adjustable filter and heater ensure your Betta has clean and comfortable water. It’s a great 5 gallon aquarium for your Betta fish tank.

Marina LED Aquarium Kit
Marina LED Aquarium Kit


  • Comes with all the necessary equipment
  • Clear glass tank for better viewing
  • LED light provides natural daylight effect
  • Fully adjustable filter and heater


  • The filter can be noisy
  • The plastic lid may not be very durable
  • Fluval Spec Aquarium Kit

The Fluval Spec V Aquarium Kit is a great size for a Betta and comes with a powerful 3-stage filtration system. It has a clear glass tank with aluminum trim and an LED lighting system that provides bright and natural-looking light. The tank also includes a foam block filter, activated carbon, and BioMax bio rings.

Fluval Spec Aquarium Kit
Fluval Spec Aquarium Kit


  • Powerful 3-stage filtration system
  • Stylish design with clear glass tank and aluminum trim
  • LED lighting system provides bright and natural-looking light
  • Comes with foam block filter, activated carbon, and BioMax bio rings


  • The filter may be too strong for a Betta fish
  • The LED light may not be very bright
  • Tetra Crescent Aquarium Kit

The Tetra Crescent Aquarium Kit is a great 5-gallon fish tank option that provides ample space for your Betta fish. Its curved front design offers a 180-degree view of your fish, while the energy-efficient LED light and Tetra Whisper filter help keep the tank clean and clear. The lid has a feeding hole for easy maintenance, making this tank a great choice to help your fish thrive.

Tetra Crescent Aquarium Kit
Tetra Crescent Aquarium Kit


  • Curved-front tank provides a 180-degree view
  • Energy-efficient LED light
  • Tetra Whisper filter keeps the water clean and clear
  • Feeding hole on the lid for easy feeding and maintenance


  • The filter may not be very powerful
  • The curved shape may make it difficult to add decorations

Choosing the Right Location for Your Betta’s Tank

When setting up your Betta’s new tank, it’s important to consider the location carefully. Here are some factors to keep in mind:

Choosing the Right Location for Your Bettas Tank
Choosing the Right Location for Your Bettas Tank
  • The tank should be placed in a low-traffic area to reduce stress on your Betta.

  • Avoid placing the tank near windows or areas with direct sunlight to prevent temperature fluctuations and algae growth.

  • Make sure the surface the tank is placed on is level and sturdy enough to support the weight of the tank and accessories.

  • Consider the size and shape of your tank, especially if you have selected a portrait aquarium from our list of the best 5-gallon fish tank kits.

  • Think about the other fish you want to keep in the tank and whether they are compatible with your Betta.

Remember, the location of the tank can have a significant impact on the health and happiness of your Betta, so choose wisely.

How to Set Up Your Betta’s 5 Gallon Tank

When it comes to setting up your Betta’s new home, it can seem overwhelming. However, with some guidance, it can be a seamless process. Here are some tips on how to set up your Betta’s 5 gallon tank:

How to Set Up Your Betta's 5 Gallon Tank
How to Set Up Your Betta’s 5 Gallon Tank
  • 1. Step

    Rinse the tank and all accessories with warm water to ensure cleanliness. Avoid using any harmful chemicals or soaps that could be harmful to your Betta.

  • 2. Step

    Install the appropriate filter and heater according to the manufacturer’s instructions. Be sure to choose a filter and heater that are suitable for a 5 gallon tank.

  • 3. Step

    Add your chosen substrate and decorations, such as rocks, plants, or caves, to provide hiding spots for your Betta.

  • 4. Step

    Fill the tank with room temperature water, leaving some space at the top for air exchange. Add a water conditioner to remove any harmful chemicals from the tap water.

  • 5. Step

    Cycling the tank is important for establishing a healthy environment for your Betta. Let the filter run for a few weeks to establish a beneficial bacteria colony that converts harmful ammonia into nitrite and then into nitrate. Test the water parameters regularly to monitor the cycling process.

Finally, it’s crucial to monitor the water parameters by using a water test kit to ensure that the levels of ammonia, nitrite, and nitrate are within safe ranges for your Betta. By following these steps, you can create a safe and healthy environment for your Betta. Remember to make necessary adjustments to maintain the best conditions for your Betta.

Feeding Your Betta in a 5 Gallon Tank

How to Set Up Your Betta's 5 Gallon Tank
How to Set Up Your Betta’s 5 Gallon Tank

As a Betta fish owner, it’s important to understand your fish’s dietary needs and establish healthy feeding habits in their 5 gallon tank. Betta fish are carnivorous and require high-quality protein in their diet.

To provide a well-balanced diet, you can choose from commercially available Betta pellets, freeze-dried or frozen brine shrimp, bloodworms, or daphnia. However, it’s crucial to read the ingredients list to ensure that the food contains high-quality protein and doesn’t have any fillers or preservatives that can harm your Betta’s health.

Giving your Betta small amounts of food twice a day instead of one large meal is best to avoid overfeeding. Overfeeding can lead to health issues like bloating, constipation, and swim bladder problems.

Removing any uneaten food within a few minutes is important to prevent it from polluting the water. By establishing proper feeding habits and providing a healthy and well-balanced diet, you can ensure that your Betta fish stays healthy and happy in their 5-gallon tank.

Maintaining Your Betta’s 5 Gallon Tank

Best 5 Gallon Tank for Betta Fish Maintaining Your Bettas 5 Gallon Tank

Maintaining a healthy environment for your Betta fish in a 5 gallon tank is crucial to their well-being. Regular maintenance is key, so establish a schedule that works for you. The frequency of maintenance tasks depends on factors like the number of fish in the tank, the filter system you use, and the type of food you feed your Betta.
Generally, partial water changes should be done weekly or bi-weekly, and you should clean the tank walls and decorations while checking the water parameters. Keep an eye on the water temperature too, and ensure it stays within the recommended range.
Although regular maintenance can prevent common issues, you may still encounter problems like cloudy water, algae growth, or filter malfunctions. Troubleshooting these issues is easy if you know how. For instance, cloudy water could be a sign of overfeeding or an unbalanced nitrogen cycle. Reduce the amount of food you give your Betta and perform a partial water change to restore the nitrogen balance.
Excessive algae growth may be due to too much light or nutrients in the water. To reduce nutrient levels, minimize the amount of light and increase water changes. Understanding the common problems and how to address them will help you maintain a healthy environment for your Betta fish. Remember that a 5 gallon tank is a great size for your Betta, and choosing the best 5 gallon fish tank is important for their well-being.

Tips for Keeping Your Betta Happy and Healthy

When it comes to ensuring the health and happiness of your Betta fish, there are several key factors to consider.

Tips for Keeping Your Betta Happy and Healthy
Tips for Keeping Your Betta Happy and Healthy
  • Proper water conditions and temperature are essential. Regularly monitor and maintain water parameters, such as pH, ammonia, nitrite, and nitrate levels. The ideal temperature range for Betta fish is between 76 and 82 degrees Fahrenheit.

  • Avoid overcrowding your Betta’s tank. A 5-gallon tank is suitable for one Betta fish and possibly a few small tank mates. Avoid aggressive or fin-nipping species, and research compatible tank mates before adding them to your Betta’s home.

  • Provide your Betta with a variety of food options, including high-quality pellets and occasional treats like frozen or live foods. Be mindful of portion sizes, as overfeeding can lead to health issues.

  • Keep the tank environment stimulating with decorations and hiding places. Live plants not only provide visual interest but also help maintain water quality by absorbing nitrates.

  • Regularly clean the tank and replace the water, but be careful not to disturb the beneficial bacteria that have developed in the filter and substrate. Use a gravel vacuum to remove debris from the substrate, and avoid using soap or other cleaning agents that can harm your Betta or disrupt the tank’s ecosystem.

Common Mistakes to Avoid with Betta Tanks

When it comes to setting up a Betta’s 5-gallon tank, there are several common misconceptions and mistakes that should be avoided to ensure the health and happiness of your fish. Here are some tips for choosing the best accessories and equipment for your Betta’s tank:

Common Mistakes to Avoid with Betta Tanks
Common Mistakes to Avoid with Betta Tanks

Common Misconceptions:

  • Not cycling the tank properly before adding fish
  • Overfeeding or feeding inappropriate foods to your Betta
  • Using tap water without properly conditioning it first
  • Overcrowding the tank with too many fish or decorations
  • Changing too much water too frequently or not frequently enough
  • Ignoring signs of illness or stress in your Betta

Best Accessories & Equipment:

  • A filter to keep the water clean and clear
  • A heater to maintain a consistent temperature in the tank
  • A thermometer to monitor the water temperature
  • A substrate, such as sand or gravel, for the bottom of the tank
  • Live or silk plants to provide hiding places and oxygenation for your Betta
  • A light to mimic natural sunlight and promote a healthy day/night cycle for your Betta


In conclusion, choosing the best 5-gallon fish tank for your Betta requires careful consideration. This size tank is the perfect size for one Betta fish and maybe a few small tank mates, considering the inch of fish per gallon of water rule.

A 5-gallon fish tank with a filter is a great option as it helps maintain proper water conditions and removes harmful substances. It’s essential to avoid common mistakes such as overcrowding, using the wrong equipment, and neglecting water changes, as these can cause health problems for your fish.

When choosing the best 5-gallon tank, keep in mind that this size tank is also a great way to create an ideal environment that mimics your Betta’s natural habitat. A small fish tank with live plants and hiding places is the perfect setup for your Betta. The fact that live plants absorb nitrates and help maintain water quality makes them an excellent accessory.

By following this ultimate guide, you’ll be well-equipped to find and maintain the perfect 5-gallon fish tank for your Betta. Always prioritize your Betta’s needs when setting up and maintaining their tank to ensure their well-being and longevity. Remember, a 5-gallon fish tank is the perfect size for your Betta’s home.


what fish to put in 5-gallon tank with a betta

To ensure the health and happiness of your Betta fish, it’s important to carefully choose tank mates and accessories that are compatible with them. A 5-gallon tank is great for a Betta fish, but it’s important not to overcrowd it. Here are some options for what to put in a 5-gallon tank with a Betta:

Snails: Snails are a popular choice to add to a Betta tank. They help to keep the tank clean by eating algae and other debris. Some species of snails, such as nerite snails, are well-suited for a 5-gallon tank as they don’t produce a lot of waste.

Shrimp: Another popular choice for a Betta tank is shrimp. Amano, ghost, and cherry shrimp are all suitable options for a 5-gallon tank. They also help to keep the tank clean by eating algae and other debris.

Plants: Adding live plants to your 5-gallon tank enhances its aesthetic appeal and helps maintain good water quality. Live plants absorb nitrates and other waste products, which helps to keep the water clean and healthy for your Betta.

It’s important to note that while it’s tempting to add more fish to a small tank, it’s not recommended. A 5-gallon tank is not large enough to support multiple fish. Overcrowding can lead to stress, aggression, and health issues for your Betta. Always prioritize the well-being of you

can betta fish live in a 5 gallon tank

Yes, betta fish can thrive in a 5-gallon tank, and it’s highly recommended as a minimum tank size for their health and happiness. While betta fish can survive in smaller tanks, it’s not recommended as it can lead to stress, stunted growth, and health issues.

A 5-gallon tank offers plenty of swimming space for betta fish to explore and allows room for adding suitable filtration and equipment. When selecting a tank, it’s important to choose one specifically designed for betta fish that provides enough space and filtration.

When setting up a 5-gallon tank for a betta fish, it’s crucial to consider the water conditions and any tank mates. Betta fish prefer warm and slightly acidic water, with a pH between 6.5 and 7.5. They also prefer a calm environment, so avoid adding any fish or creatures that may nip at their fins.

Suitable tank mates for a betta fish in a 5-gallon tank include snails and shrimp, but avoid adding any fish that are too active or may cause stress to the betta. Additionally, it’s important to avoid overstocking the tank and to maintain good water quality through regular water changes and filtration maintenance.

In conclusion, betta fish can live happily in a 5-gallon tank if it provides adequate space and suitable conditions for their well-being. Choosing the right tank size and equipment, maintaining good water quality, and selecting suitable tank mates are all important considerations when setting up a small fish tank for a betta.

do betta fish need a 5 gallon tank

Betta fish are a popular type of fish that require a minimum of a 5-gallon fish tank to live a healthy life. While they may survive in smaller tanks, it’s not recommended as it can lead to various issues.

Betta fish require plenty of swimming space, and a 5-gallon fish tank is a great size to provide them with the room they need to move around and explore.

A 5-gallon betta fish tank is also the perfect size to install a suitable filter to maintain good water quality, which is crucial for your Betta’s health. Betta fish are sensitive to changes in water parameters, so it’s recommended to regularly check water conditions and maintain them within the suitable range.

Choosing the best 5-gallon fish tank that’s specifically designed for Betta fish and provides ample space and filtration is essential. Betta fish need a comfortable and healthy environment to thrive and live a long life. Therefore, investing in a suitable 5-gallon fish tank for your Betta is the best option.

why do bettas need 5 gallons

Betta fish need a minimum of a 5-gallon tank to ensure their well-being and healthy lifestyle. Although they can survive in smaller tanks, it is not recommended as it
can lead to several issues such as stress, stunted growth, and health problems

The reasons for a 5-gallon tank being necessary for betta fish are numerous. Firstly, these fish require enough swimming space to move around and explore, which a 5-gallon tank provides. It is crucial for their physical health and overall well-being as they need to exercise regularly.

Secondly, a 5-gallon tank provides sufficient space for appropriate filtration and equipment to maintain water quality. Betta fish are sensitive to changes in water parameters, and it is essential to maintain the water conditions within the suitable range. A larger tank allows for more stable water conditions, which is vital for the health of your betta fish.

Lastly, a 5-gallon tank allows for adding suitable tank mates if desired. Betta fish can coexist with specific species of snails and shrimp, but it is essential to avoid overstocking the tank and choose suitable tank mates that won’t cause stress to the betta.

Can You Keep Live Plants In A 5 Gallon Fish Tank?

Yes, live plants in your tank are a great addition and can be kept in a 5-gallon fish tank. Adding live plants to your tank can provide numerous benefits for both the plants and fish, including reducing the levels of toxic substances such as ammonia and nitrites, which can be harmful to your fish.

They can also help to oxygenate the water and provide shelter and hiding places for your fish, making them feel more secure and reducing their stress levels.

It’s important to choose live plants that are suitable for the size of your tank and the needs of your fish. Popular choices for a 5-gallon tank include Anubias, Java Moss, and Marimo Moss Balls. However, it’s important to note that live plants require care and maintenance, just like your fish.

Proper lighting and nutrients are essential for their growth and health, so it’s important to research the specific requirements of each plant and provide them with the necessary conditions.

In conclusion, live plants can provide numerous benefits to your tank, including improving water quality and reducing stress levels in your fish. Therefore, adding suitable live plants in your tank is recommended for a healthy and thriving aquatic environment.

Does A 5-Gallon Fish Tank Need A Filter?

A 5-gallon fish tank absolutely needs a filter to maintain a healthy environment for your fish. A filter is an essential piece of equipment that helps to remove waste, debris, and other harmful substances from the water. Without a filter, these substances can build up quickly and lead to poor water quality, which can be harmful to your fish.

A fish tank with a filter helps to create a balanced ecosystem that supports the health and well-being of your fish. The filter helps to circulate the water, providing oxygen and ensuring that waste and debris are removed from the tank. This helps prevent harmful bacteria growth and keeps the water clean and clear.

When selecting a filter for your 5-gallon fish tank, it’s important to choose one that is suitable for the size of your tank and the needs of your fish. A too powerful filter can create strong currents that can stress or harm your fish, while a filter that is too weak may not be effective at removing waste and debris.

Several types of filters are available for a fish tank with a filter, including hang-on-back filters, sponge filters, and internal filters. Each type of filter has its own benefits and drawbacks, so it’s important to research the different options and choose one that is best suited to your specific needs.

How big will a Betta Fish, Get in a 5-Gallon Tank?

Betta fish are popular for fish enthusiasts due to their vibrant colors and unique personalities. It’s common for betta fish owners to wonder about the maximum size their fish can reach in a 5-gallon tank.

In a 5-gallon tank, adult betta fish typically grow up to 2.5 inches in length, measured from the nose to the tail tip. However, it’s important to keep in mind that several factors can affect the size of a betta fish. For instance, diet, genetics, and tank conditions can play a role in determining how big your betta fish will get.

If you want your betta fish to reach its maximum size potential in a 5-gallon tank, it’s essential to maintain good water quality and offer a balanced diet. Regular water changes and appropriate filtration are also crucial for ensuring a healthy tank environment. Moreover, it’s essential to provide enough space, hiding places, and opportunities for swimming to help your fish grow and thrive.

In summary, in a 5-gallon tank, betta fish can grow up to 2.5 inches long. However, various factors can impact their size, and it’s crucial to create a healthy tank environment to ensure your fish grows to its full potential.

How Many Betta Fish Can I Put In A 5-Gallon Tank?

When it comes to how many betta fish can be housed in a 5-gallon tank, the general consensus among experts is that only one betta fish should be kept in such a small tank.

This is because betta fish are territorial and can become aggressive towards other fish, and therefore, need adequate space to establish their own territory and avoid conflict. Trying to keep multiple betta fish in a small tank can cause stress, aggression, and even death.

In addition to providing adequate space, it’s important to ensure that your 5-gallon tank is properly filtered and maintained to ensure good water quality. Regular water changes and monitoring of pH and ammonia levels are essential.

If you want to keep multiple betta fish, investing in a larger tank with appropriate filtration and ample swimming space is recommended. It may be possible to house multiple betta fish in a larger tank, provided they have plenty of hiding spaces and compatible personalities and temperaments.

How Often Should I Clean My Betta’s 5-Gallon Tank?

Keeping a clean and healthy environment is crucial for the well-being of your betta fish. If you have a 5-gallon tank, you’ll need to clean it regularly to maintain good water quality. The cleaning frequency depends on the tank’s size, the number of fish, and the filter’s efficiency.

Experts recommend performing a 25-50% water change weekly for a 5-gallon tank. During the water change, remove any debris, uneaten food, or waste from the bottom of the tank and replace it with dechlorinated water of the same temperature and pH level.

Additionally, it’s important to thoroughly clean the tank and its accessories every month. Use a sponge or brush to remove any algae or debris buildup from the filter, decorations, and gravel. Rinse everything thoroughly with warm water.

Monitoring the water quality of your betta’s tank is also important. You can use a water testing kit to check ammonia, nitrite, nitrate, and pH levels. If you notice any significant changes, perform a water change immediately to restore the water quality.

Mike DaVinci

Mike DaVinci

Senior Editor of

Hello there! Mike DaVinci. at your service, a passionate writer for FishyFishPet – your go-to online source for all things fish keeping. Our website is designed to help fish owners understand the best practices for taking care of their aquatic companions covering everything from selecting the right stand for your tank to choosing the perfect filter system. Whether you’re new to the hobby or an experienced aquarist seeking to expand your knowledge, FishyFishPet is the perfect resource for you. We appreciate your visit and hope that you find all the information you need to make your fish keeping journey a success. Thank you for choosing FishyFishPet!

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