10 Best Betta Fish Tank Sizes [2025]
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Choosing the best betta fish tank sizes can be challenging, especially with the myriad of options available on the market today. It’s easy to feel overwhelmed when trying to determine the right fit for your aquatic companion’s needs. To simplify this process, we meticulously shortlisted 10 of the best products based on quality, size, and user reviews, ensuring that our recommendations cater to a range of preferences and requirements. This carefully curated list will save you time and hassle, allowing you to focus on providing the best environment for your betta fish.
Top 10 Betta Fish Tank Sizes In The Market
Betta Fish Tank Sizes Review
- AQUARIUM KIT: Clear plastic, half moon-shaped front allows unobstructed viewing.
- MOVABLE LIGHT: LED light can be positioned to light tank from above or below – requires 3 AA batteries (not included).
- IDEAL FOR BETTAS: Bettas have large, heavy fins that weigh them down, so they do not need a lot of space; bettas require minimal maintenance and make a great species for beginners.
- CONVENIENT: Clear canopy has a hole to make feeding fish easy.
- 1.1 GALLON TANK: Small size that’s perfect for a desktop or in any room (9 inches x 10.5 inches x 4.5 inches).
- THERE’S ROOM FOR TWO: The Double Betta Bowfront Tank Kit offers a safe and convenient way to house up to 2 Bettas in a single aquarium. This plastic tank features a removeable, double-sided divider with built-in slits for even water flow. You can remove the divider completely, giving more space to a single Betta.
- SHOWCASE THOSE BEAUTIFUL COLORS: While keeping your Bettas safely separated, the double-sided divider is both opaque and see-though. If you wish to keep your fish from seeing one another, keep both sides of the wall down. If you wish to see some vibrant displays and flares from your Bettas, lift and remove the colored side of the partition.
- UNIQUE FEATURES: Our double chamber Betta Bowfront Tank Kits come with waste absorbing Pro-V Crystals, a filter grid, and 2 plastic plants. They also feature a water release cap on the very bottom at the tank, which makes water changes that much easier. With a slight pinch, the E-Z Lift Lid gives you easy and instant access.
- HELPFUL INSTRUCTIONS: 1) Wash all components with warm water only, and then spot dry with a clean towel or rag. 2) Place filter grid, waste adsorbing crystals, and plastic plants in tank, then fill with dechlorinated water. 3) Approximately once a week or as needed, drain about 20 percent of water by opening the water release cap, then fill with dechlorinated water.
- MEASUREMENTS: Overall = 7.75 (W) x 3.5 (D) x 6 (H) / Each Chamber when Divided = 3.75 (W) x 3.5 (D) x 4.5 (H)
- [Easy to Set] - This small aquarium starter kits is easy to assemble, you can refer to the instructions as well as the video in the listing to learn the installation. The whole fish tank kit contains a 2 Gal. Glass fish tank, a 3 colors LED light, a quiet 3-in-1 aquarium filter, a small fish tank decorations. Suitable for breeding betta fish, shrimp, lobster, jellyfish crayfish, goldfish...
- [Keep Crystal Clear] - The beta fish tank self cleaning has a quiet 3-in-1 filter to form a complete filtration system. It can reduce the number of water changes, so that the small fish are not irritated by frequent changes in the environment. And it keeps the tank Crystal clear and also add air.
- [High Quality GLASS] - The fish tank is made of GLASS, only the black part is made of plastic. The glass fish tank is not easy to scratch, deformation, rounded side design on the front of the fish tank, no bumps and hurts, easy to clean, stable and durable.
- [Room Decor] -The fish tanks is the great choice to decorate your room and decorate your office, to add color to your living and working environment. Pleasant mood as well as relaxing life. It will not disturb your work, life and sleep. Real tests, make the water pump fully immersed in the water, the pump's sound was below 35 DB.
- [Great GIFT Idea] - The best choice of gifts for friends and family, can also be given to children aged 6-12 years old as a birthday gift ,simple and can develop children's hands-on skills, does NOT look cheap.
- Easy to Maintain: The water filtration system reduces the frequency of water changes, which makes it a good choice for aquarium beginners or starters to keep a single Betta, a couple of shrimp, snails, or a small goldfish. Dimension：8”x5.25”x7”(LxWxH)
- Built-in Light: LED hood provides ample light for the tank making your fish glow brighter and the decorations stand out.
- Compact Size: The tank is lightweight, cute and small and it doesn't take up too much space on the desktop or a kitchen counter. (Note: If the current is a bit strong, you can put a pre-filter sponge filter on the intake to reduce the water flow.)
- Complete Starter Kit: 1x 1.2 gallon Fish tank, 1x Sponge, 1x Water Filter, 1x 5V USB Power Cord, 2x Artificial Plants
- Note: No USB power adapter included, the tank need power of DC 5V/ 2A. Make sure the adapter you use is powerful enough. Insufficient power of the adapter may cause the light or the pump not working. If the pump stops working or the water flow decreases, it is time to remove the pump, clean it thoroughly, and then properly reinstall the impeller and shaft assembly to restore normal operation. And the pump need to be FULLY SUBMERGED UNDER WATER to work.
- 🐠The Perfect Aquarium Betta Tank: A 3-gallon nano glass aquarium that's an absolute gem for aquarium enthusiasts! This rectangular beauty is tailor-made for Betta fish, guppies, angelfish, and other small, captivating aquatic companions. Equipped with LED lights, a hanging filter, and lids, we've even thrown in specialized dividers and shields—perfect for hosting two Betta fish, letting them swim with passion and rest in style.
- 🐙Sleek and Simple Design: Our tank measures 12.6 inches in length, 6.3 inches in width, and stands 8.67 inches tall, boasting crystal-clear 4mm-thick glass. The back glass is chic black, and the bottom features a black EVA cushion, giving the tank an inherently sophisticated black look—perfect for your American-style home. We've also included a custom lid to prevent any fishy escape attempts.
- 🐠The Parameter of the Filter: AC110V/60Hz, 2.5W, 250L/H, the flow is adjustable. The filter is hanging back, which allows for more room in the tank. Remember, fill the filter with water before every start-up!
- 🐟Full-spectrum Aquarium Lights: Let there be light! Our tank features a brilliant clip-on lamp that illuminates your underwater world with a dazzling glow. Operating at AC110~240v, 13W, 780 Lumen. Full-spectrum aquarium lights are suitable for aquatic plant growth, this LED fixture promises a radiant view of your aquatic buddies.
- 🐳The Perfect Gift: This compact fish tank comes in a stylish packaging, making it the ideal gift for your child, colleague, friend, or family member on special occasions or birthdays. As you know, aquariums are delicate items, and mishaps can occur during transit due to the long shipping times. If you discover any damage, contact us promptly, and we'll arrange a refund or replacement for you.🪸
- Ameliade fish tank decorations perfectly replicates the natural environment, and once you put it in the tank, you won't even be able to recognize that it's actually made of plastic. Your fish will enjoy the environment these plants provide，and they can play and hide in it.
- The leaves are soft and lifelike without scratching the fish. They swing with the water waves in the fish tank, making them look very vivid and beautiful in the water. They can be planted in both of freshwater and seawater. Each plant has its own base for holding it in the gravel.
- Unlike live plants in fish tank, plastic artificial plants do not need special lighting and other substrates. They neither die nor become wilted or unattractive. They remain beautiful all the time without any pruning.
- We provide the suitable aquarium products for different sizes of aquariums in order to save you time. You just need to buy them according to your needs and put them in your fish tank, and they will create a beautiful underwater world for your pet fish, making fish life more interesting and happier. This will turn your fish tank into their amusement park.
- The set contains 1 rockery aquarium decoration, 3 short aquarium plants, 3 medium aquarium plants and 1 tall aquarium plants with a total of 8 different styles. Heights vary from 2 inches to 8 inches. It is suitable for 5 gallon or larger fish tanks.
- BETTA TANK and HYDROPONIC PLANTER: See nature in motion through our Aqua-Ponic Tanks. Each fish tank is made from ultra-clear plastic, and replicates nature’s metabolic cycle by providing a healthy and symbiotic environment for fish and plants.
- YOUR BETTA’S NEW HOME: Bettas are the most popular fish for our 0.5 Gallon Aqua-Ponic Tank. With that said, please decrease the water level about an inch, giving them enough space to breathe from the water’s surface. Weekly partial water changes are highly recommended.
- SUGGESTED PLANTS: Most indoor house plants and kitchen herbs are suitable for planting atop. This includes Peace Lily, Chinese Evergreen, Lucky Bamboo, English Ivy, Mint, Watercress, Chives, or any leafy Lettuce. We recommend using established plants instead of starting from seed.
- ADDITIONAL FEATURES: Our Aqua-Ponic Tanks come with ceramic planting media, which retain water and support the root growth for any plant you choose. To add water into the tank, simply water the plant, allowing the runoff to enter the tank. As for feeding your fish, you’ll need to lift the black plastic top.
- MEASUREMENTS: Overall = 5.9" (Dia) x 8.25" (H) / Tank Interior = 4.25" (Dia) x 7" (H) / Enclosed Pot = 5.9" (Dia) x 2.25" (H)
- For small betta habitats like bowls and aquariums up to 3 gallons
- Carbon and sponge cartridge should be replaced monthly for optimal performance
- Air bubbles provided added environmental enrichment and oxygen in betta habitat
- Requires air pump for operation (sold separately)
- Air operated betta filter with natural plant decoration helps improve water quality and clarity for a healthier habitat
- BETTA TANK & HYDROPONIC PLANTER: See nature in motion through our Aqua-Ponic Tanks! Each fish tank is made from ultra-clear plastic, and replicates nature’s metabolic cycle by providing a healthy and symbiotic environment for fish and plants.
- SUGGESTED FISH: While Bettas are the most popular fish for our 1.4 Gallon Aqua-Ponic Tank, they can also house Bloodfin Tetras, White Cloud Minnows, Danios, and Guppies (1 – 3 fish). For Bettas, please decrease the water level an inch, giving them enough space to breath from the water’s surface.
- SUGGESTED PLANTS: Most indoor house plants and kitchen herbs are suitable for planting atop. This includes Peace Lily, Chinese Evergreen, Lucky Bamboo, English Ivy, Mint, Watercress, Chives, or any leafy Lettuce. We recommend using established plants instead of starting from seed.
- ADDITIONAL FEATURES: Our Aqua-Ponic Tanks come with ceramic planting media, which retains water and supports root growth for any plant you chose. To add water into the tank, simply water the plant, as if it’s in a pot of soil. As for feeding your fish, there’s several side openings that are more than large enough for a pinch of food.
- MEASUREMENTS: Overall = 7.75" (Dia) x 10.25" (H) / Black Base = 7.75" (Dia) x 1.75" (H) / Tank Interior = 7.75" (Dia) x 7.25" (H) / Enclosed Pot = 3.75" (Dia) x 2.25" (H)
- CONVENIENT FOR SMALL SPACES: The NuWave Betta Tank Kit is perfect for small or unused spaces: a desk, dresser, or even on top of the old file cabinet that hasn’t been touched in years. This 1.5 gallon aquarium is made of clear, high-quality plastic, and makes for a perfect Betta home. Please Note: Fish and gravel not included.
- INTEGRATED INTERNAL FILTER: Our 1.5 Gallon Betta Tank Kits come with a specifically designed internal filter that utilizes biological, mechanical, and chemical filtration to keep the water clean and crystal-clear. Each filter also comes with a coarse sponge and a carbon media cartridge.
- LED LIGHT: The NuWave Betta Tank Kit also comes with a fully integrated, low voltage, utra-bright white Led light that’s embed in the lid for maximum viewing and visibility. The light features an on/off switch that’s separate from the internal filter. In other words, the filter will continue to run, whether the light is on or off.
- MEASUREMENTS: Overall = 8.5” (W) x 6” (D) x 9.5” (H) / Tank Interior = 8.5” (W) x 6” (D) x 7.5” (H) / Black Base = 8.5” (W) x 6” (D) x 1.5” (H) / Water Volume = 1.5 Gallon
- SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: PENN-PLAX is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.
Our Review Process
To ensure you get reliable product recommendations, we follow a detailed review methodology that includes:
- Market Research: Scanning best-selling and trending products in this category.
- User Feedback: Reviewing customer reviews, star ratings, and complaints.
- Hands-On Testing: Trying select products ourselves when feasible.
- Feature Comparison: Evaluating specs, durability, pricing, and safety.
- Expert Opinions: Consulting with niche experts or credible reviewers.
We independently select the top 10 options based on value, quality, and usability. To learn more, visit our detailed review process.
Key Considerations Before Buying a Betta Fish Tank
1. Size of the Tank
When selecting a tank for your Betta fish, size is one of the most critical factors. Bettas thrive in a minimum of 5 gallons of water. While smaller tanks can be tempting due to their lower cost and space requirements, they can lead to poor water quality, which can stress your fish and lead to health problems.
2. Shape and Design
The shape of the tank can also impact your Betta’s well-being. Tall and narrow tanks might look appealing, but they provide less swimming space compared to wider, more rectangular tanks. Bettas are active swimmers and need room to explore their environment. Additionally, the tank design should include hiding spots and plants to mimic their natural habitat.
3. Filtration System
A good filtration system is essential for maintaining water quality. Bettas are sensitive to changes in their environment, so a filter that creates minimal water current is preferable. Look for a filter with adjustable flow settings, as Bettas prefer calm waters. Regular water changes will still be necessary, but a good filter can help reduce the frequency.
4. Heating Requirements
Bettas prefer warm water temperatures between 76°F and 82°F. Depending on your local climate, you may need to invest in a reliable heater to maintain the proper temperature in the tank. Make sure to choose a heater that is appropriate for the size of your tank and has a thermostat to prevent overheating.
5. Maintenance Ease
Consider how easy the tank will be to clean and maintain. A larger tank with a good filter may require less frequent cleaning than a smaller one. Look for tanks with removable lids and easy access for siphoning water or cleaning the substrate. Also, consider how easy it is to add decorations or plants without disturbing the tank’s ecosystem.
6. Compatibility with Other Fish
If you plan on keeping other fish in the same tank, it’s crucial to choose the right species. Bettas can be aggressive, particularly towards other males and certain brightly colored fish. Research compatible species and ensure that your tank is large enough to accommodate multiple inhabitants without causing stress or territorial disputes.
7. Budget
Lastly, consider your budget. While it might be tempting to opt for a cheaper tank, remember that investing in a larger, higher-quality tank will benefit your Betta in the long run. Factor in the costs of a heater, filter, substrate, decorations, and ongoing maintenance when calculating your budget.
FAQs
What is the minimum tank size for a Betta fish?
The minimum recommended tank size for a Betta fish is 5 gallons. While they can survive in smaller containers, larger tanks provide better water quality and a more stable environment, which is crucial for their health and well-being.
Can Betta fish live in a 1-gallon tank?
While Betta fish can technically survive in a 1-gallon tank, it is not ideal for their health. Small tanks can lead to poor water quality and stress. A minimum of 5 gallons is strongly recommended to ensure a healthier and more comfortable environment.
What is the best tank size for multiple Betta fish?
If you plan to keep multiple Betta fish, a minimum of 10 gallons is recommended, with more space needed for each additional fish. However, it’s important to note that male Bettas are territorial and should not be housed together. Females can be kept in groups (a sorority) in larger tanks, ideally 20 gallons or more.
Do Betta fish need a larger tank if they are kept with other fish?
Yes, if you plan to keep Betta fish with other species, it’s best to use a larger tank, typically at least 10 gallons. This allows more swimming space and helps to maintain better water quality, which is beneficial for all the fish in the tank.
How many Betta fish can I keep in a 10-gallon tank?
In a 10-gallon tank, you can ideally keep one male Betta fish with a few female Betta fish or other compatible species. If you plan to create a Betta sorority, aim for at least 4-6 females to reduce aggression, and ensure there are plenty of hiding spots.
What factors should I consider when choosing a tank size for my Betta fish?
When choosing a tank size for your Betta fish, consider factors such as the number of fish you plan to keep, the filtration system, the presence of plants or decorations, and the overall maintenance effort you are willing to invest. A larger tank generally offers better water stability and conditions.
Is it necessary to have a heater in a Betta fish tank?
Yes, it is necessary to have a heater in a Betta fish tank, regardless of the size. Bettas thrive in warm water temperatures between 76°F and 82°F (24°C to 28°C). Consistent heating is crucial for their health, particularly in tanks larger than 5 gallons.
Can I use a divided tank for multiple Betta fish?
Yes, a divided tank can be a great option for keeping multiple Betta fish, particularly males, as it prevents aggression. Ensure that each section is at least 5 gallons to provide enough space for each fish, and use a secure divider to prevent direct line-of-sight and territorial disputes.
The Bottom Line
In conclusion, selecting the right tank size for your betta fish is crucial for their health and well-being. The ten products we highlighted in this article were chosen based on factors such as tank dimensions, build quality, ease of maintenance, and user reviews. We aimed to present a range of options that cater to different needs, whether you are a beginner looking for a small starter tank or an experienced aquarist seeking a larger setup to create a vibrant aquatic environment. Each of these tanks has been evaluated for its suitability for bettas, ensuring that your fish will have the space and conditions they need to thrive.
By following our curated list, you can make an informed decision that aligns with your specific preferences and requirements. Choosing the right tank not only enhances the lives of your betta fish but also contributes to a more enjoyable and rewarding aquarium experience for you. With the proper setup, you can create a stunning underwater habitat that allows your betta to flourish, showcasing their vibrant colors and unique behaviors. Trust in our selections to guide you toward a happy and healthy betta fish journey.
