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9 Best Betta Fish Tanks of 2020

Best Betta Fish Tank

Betta fish, also known as Siamese fighting fish, are a very popular choice in aquariums. They are colorful and have magnificent fins that improve their character as well as that of the fish tank.

However, the “fighting” in their name is not there by accident. They are known to be highly aggressive when housed in the same tank with other fish. This is especially true for the male bettas because they are very territorial.

Therefore, it is important to consider a tank that can house a single betta fish, some decorations and plants comfortably. With that in mind, this article looks at 10 of the best betta fish tanks that you should consider buying.

You can also read other product reviews of substrates for bettasmall fish tankself-cleaning fish tanknano reef tank.

IMAGE

​PRODUCT

​FEATURES

MarineLand ML90609

1. MarineLand ML90609 (Portrait Betta Fish Tank)

  • 5-gallon tank in a portrait design
  • White and blue LEDs with a toggle switch
  • 3-stage filtration system
  • Glass construction with rounded corners
Marina 15266A1

2. Marina 15266A1 (Largest Betta Fish Tank)

  • 20-gallon glass tank
  • 3-stage filtration system
  • Includes multiple accessories
Fluval 10516A2

3. Fluval 10516A2 (Well-Lit Betta Fish Tank)

  • 37 LED lighting system
  • 3-stage filtration system
  • Glass construction with aluminum trims
Penn-Plax APON1

4. Penn-Plax APON1 (Aquaponic Betta Fish Tank)

  • 0.5-gallon tank with a plant growing pot
  • Lightweight plastic construction
  • Affordable
Tetra 29050

5. Tetra 29050 (Trapezoid Betta Tank with Base Lighting)

  • 1-gallon trapezoid-shaped tank
  • Narrow base with 4 white LEDs
  • Affordable
  • 4 AA batteries or USB power
Tetra 29003

6. Tetra 29003 (Crescent-Shaped Betta Fish Tank)

  • 5-gallon crescent-shaped tank
  • Black cover with white LEDs
  • 2-stage filtration system
  • Lightweight acrylic construction
Penn-Plax BBT4

7. Penn-Plax BBT4 (Triple Betta Fish Tank)

  • Dividable into 3 compartments
  • Under-gravel filtration system
  • 2 colored LEDs
Fluval 15385

8. Fluval 15385 (Floating Cube Betta Fish Tank)

  • 3D cube design with a 360º viewing angle
  • Mounted on a narrow column pedestal
  • 21 LEDs with a 7600K color temperature
  • 6-gallon capacity with a 3-stage filtration system
Aqueon 00817787

9. Aqueon 00817787 (Betta Fish Tank with a Divider)

  • 2.5-gallon desktop aquarium with a divider
  • Filter cartridge for mechanical filtration
  • LED lighting
  • Plastic construction

PRODUCT

1. MarineLand ML90609

(Portrait Betta Fish Tank)

MarineLand ML90609
  • 5-gallon tank in a portrait design
  • White and blue LEDs with a toggle switch
  • 3-stage filtration system
  • Glass construction with rounded corners

2. Marina 15266A1

(Largest Betta Fish Tank)

Marina 15266A1
  • 20-gallon glass tank
  • 3-stage filtration system
  • Includes multiple accessories

3. Fluval 10516A2

(Well-Lit Betta Fish Tank)

Fluval 10516A2
  • 37 LED lighting system
  • 3-stage filtration system
  • Glass construction with aluminum trims

4. Penn-Plax APON1

(Aquaponic Betta Fish Tank)

Penn-Plax APON1
  • 0.5-gallon tank with a plant growing pot
  • Lightweight plastic construction
  • Affordable

5. Tetra 29050

(Trapezoid Betta Tank with Base Lighting)

Tetra 29050
  • 1-gallon trapezoid-shaped tank
  • Narrow base with 4 white LEDs
  • Affordable
  • 4 AA batteries or USB power

6. Tetra 29003

(Crescent-Shaped Betta Fish Tank)

Tetra 29003
  • 5-gallon crescent-shaped tank
  • Black cover with white LEDs
  • 2-stage filtration system
  • Lightweight acrylic construction

7. Penn-Plax BBT4

(Triple Betta Fish Tank)

Penn-Plax BBT4
  • Dividable into 3 compartments
  • Under-gravel filtration system
  • 2 colored LEDs

8. Fluval 15385

(Floating Cube Betta Fish Tank)

Fluval 15385
  • 3D cube design with a 360º viewing angle
  • Mounted on a narrow column pedestal
  • 21 LEDs with a 7600K color temperature
  • 6-gallon capacity with a 3-stage filtration system

9. Aqueon 00817787

(Betta Fish Tank with a Divider)

Aqueon 00817787
  • 2.5-gallon desktop aquarium with a divider
  • Filter cartridge for mechanical filtration
  • LED lighting
  • Plastic construction

1. MarineLand ML90609 – Portrait Betta Fish Tank

MarineLand ML90609 Portrait Aquarium Kit
  • Tank Size: 5 gallons
  • Dimension: 11.8 x 11.6 x 17 inches
  • Material: Glass

MarineLand’s ML90609 is one of the best 5-gallon betta fish tanks because it is designed in a portrait profile, which makes it possible to grow different tall plants such as Rotala and Cabomba. This helps to improve the fish’s environment and appearance of the tank.

Above it, the aquarium has a set of LEDs that are meant to light up the fish and all other contents inside in two ways. First is a bright white light that creates a shimmering sunlight effect and the other is a blue light that creates a moonlight kind of glow to simulate the real night time.

These light settings can be easily toggled from one to the other and give you impressive views of the betta fish while also simulating the pet’s natural environment so as to regulate its feeding and sleeping.

Other features include a 3-stage filtration system with an adjustable-flow filter pump, a sliding glass canopy for easy access when feeding and a rounded glass corner design that gives you continuous views of the fish inside.

Collectively, these features make this the top-rated betta fish tank on this review.

Pros:

  • Portrait design makes it possible to include tall plants inside
  • White and blue LED lighting
  • 3-stage filtration system

Cons:

  • Glass construction makes it very brittle
  • Quite heavy due to the glass body

2. Marina 15266A1 – Largest Betta Fish Tank

Marina LED Aquarium Kit
  • Tank Size: 20 gallons
  • Dimension: 24 x 12.5 x 16.5 inches
  • Material: Glass

This aquarium may not have a portrait design like MarineLand's ML90609 but it has a massive 20-gallon capacity that is big enough to include multiple plants, decorations, gravel and other things for the betta fish inside.

The kit also comes with several items to help you get started. These include fish food, an aqua plus water conditioner, a cycle biological supplement for maintaining a healthy water environment and a care guide.

This makes it ideal for beginners since the startup process is simplified with these accessories and explained well enough for hustle-free fish keeping.

For filtration, Marina’s aquarium features a slim filter that does the mechanical, chemical and biological filtration in one. This basically means that it gets rid of debris, discolorations, odor, pollutants and toxic ammonia, leaving the fish in a very clean and habitable environment.

This same model is available in a 10-gallon and a 5-gallon option, just in case you find the 20-gallon tank to be excessively big.

Pros:

  • Large 20-gallon tank
  • Comes with multiple accessories
  • Mechanical, chemical and biological filtration done from a slim filter

Cons:

  • Quite heavy
  • Occupies a lot of space

3. Fluval 10516A2 – Well-Lit Betta Fish Tank

Fluval Spec V Aquarium Kit
  • Tank Size: 5 gallons
  • Dimension: 17.2 x 10.6 x 6.3 inches
  • Material: Glass

Fluval’s Spec V is a well-lit fish tank because it features a powerful 37 LED lighting system that transforms the submerged betta fish, plants and gravel into a work of art.

This powerful lighting on such a small tank further contributes to the spectacular views since everything is perfectly lit due to being in close proximity to the light.

Apart from this, the tank is equipped with a 3-stage filtration system that consists of a porous foam block, activated carbon and BioMax bio rings for carrying out mechanical, chemical and biological filtration.

This system is coupled with a powerful circulation pump that ensures the water is clean at all times by pumping large volumes of it through the filters at all times.

Construction wise, the structure is made of clear and etched glass, with aluminum trims on some of its edges.

The trims might affect the visibility of the fish from certain angles but they make the tank stronger and more durable.

Pros:

  • Powerful 37 LED lighting
  • 3-stage filtration system
  • Powerful circulation pump

Cons:

  • Non-continuous views of the fish due to aluminum trims
  • Glass construction makes it quite heavy

4. Penn-Plax APON1 – Aquaponic Betta Fish Tank

Penn Plax Aquaponic Betta Fish Tank
  • Tank Size: 0.5 gallon
  • Dimension: 3 x 3 x 8.6 inches
  • Material: Plastic

Not all good things come in big packages. Penn Plax’s unit is a self-sustaining aquaponics system comprising of a small aquarium for betta fish and a plant growing pot at the top.

The plant basically acts as a biological filter that consumes the ammonia produced by the fish. This results in a win-win situation because the plant gets its nutrients from the betta fish while the fish gets purified water to live in.

However, you will still have to change the water every once in a while since the unit does not have a mechanical or chemical filter. On the Brightside, the lack of this filtration machinery makes it the most affordable fish tank in this list

Construction wise, the product is made using plastic (acrylic), which is very lightweight. Coupled with its small size, the tank is very light and this makes it easy to move it to where there is light so that the plant and fish can absorb some of the light and heat required for survival.

Pros:

  • Aquaponics system for biological filtration
  • Affordable
  • Lightweight

Cons:

  • ​No mechanical or chemical filtration

5. Tetra 29050 – Trapezoid Betta Tank with Base Lighting

Tetra LED Betta Tank with Base Lighting
  • Tank Size: 1 gallon
  • Dimension: 7.2 x 8.5 x 9.5 inches
  • Material: Plastic

Tetra’s Betta tank is built having a trapezoid shape, with a wider top and narrower bottom. It features an even narrower supporting base platform, which makes it appear to be floating when placed against a dark background.

The base platform is equipped with 4 white LEDs that provide a base lighting for the tank. This means that you have to use glass marbles instead of gravel for the tank’s floor so that the light can pass through to light up the fish and water.

Powering these LEDs can be done either by 4 AA batteries or USB port, making it possible to have the fish tank glowing even after the mains go off.

The unit does not have any installed filtration system and this means that you have to change the water every once in a while. However, lacking this system makes it very affordable while its small 1-gallon capacity makes it very easy to maintain.

Pros:

  • Trapezoid shape with a floating design
  • LED-base lighting system
  • Affordable
  • Easy to maintain

Cons:

  • No filtration system

6. Tetra 29003 – Crescent-Shaped Betta Fish Tank

Tetra Crescent Acrylic Aquarium Kit
  • Tank Size: 5 gallons
  • Dimension: 16.6 x 11.2 x 13.2 inches
  • Material: Plastic

Tetra’s 29003 has a seamless curved front design (crescent shape) that gives you a wide viewing angle of the fish from multiple directions.

It features a black cover with white LED lights attached that illuminate the water directly below when the lid is closed. This provides quite an impressive view from this relatively large tank, especially if plants and decoration are included inside.

For filtration, this unit features Tetra’s Whisper Filtration system, which is a 2-stage system. It does the mechanical filtration using filter cartridges that have dense, dual-sided meshes for trapping the dirt and debris.

Chemical filtration is done using ultra-activated carbon that gets rid of the odor and discoloration.

Construction wise, this aquarium is made using acrylic, which means that the unit is very lightweight compared to its size. This makes it easily portable when rearranging or cleaning your home.

Pros:

  • Seamless curved front design
  • 2-stage filtration system
  • Lightweight

Cons:

  • ​No biological filter
  • Black cover blocks the view from the top

7. Penn-Plax BBT4 – Triple Betta Fish Tank

Penn Plax Deluxe Triple Betta Fish Tank
  • Tank Size: 0.7 gallon
  • Dimension: 4.2 x 11.5 x 7 inches
  • Material: Plastic

If you prefer keeping more than one fish, the Penn Plax is the best betta fish aquarium for you.

Of course, bettas should not be kept in the same tank so this unit is designed with 3 divided compartments with removable opaque dividers. This means that you can keep up to 3 bettas at a time.

Other than this, the product features a built-in under-gravel filtration system, which requires an air pump and tubing to be bought separately and connected so as to make it function.

However, it comes with Pro-V crystals that help in the filtration process by absorbing the fish’s waste so as to maintain a healthier water environment.

For lighting, this tank features a 2-colored LED system that comprises of a white light for creating a shimmering sunlight effect and blue light for simulating the moonlight underwater. This gives you the option to light it up depending on the mood that you are in.

On the bottom side, the unit has a bottom drain that makes it easy to change the water mess-free.

Pros:

  • Divided tank allows for up to 3 bettas at a time
  • Built-in filtration system
  • 2-colored lighting system

Cons:

  • ​Requires an additional air pump and tubing
  • Quite small in size

8. Fluval 15385 – Floating Cube Betta Fish Tank

Fluval Edge Aquarium with LED Light
  • Tank Size: 6 gallons
  • Dimension: 13.7 x 17 x 14.3 inches
  • Material: Glass

The Fluval Edge aquarium has an elegant 3D cube design that is held by a narrow column pedestal, which makes it look like its floating mid-air. 

This design has one major benefit and that is giving you a 360º viewing angle of the fish, plants, and décor inside.

Construction wise, the tank is made using glass and is sealed all through, which makes it possible to fill it with water to the brim. The result of this is a still-cube-like appearance, which looks even much better when lit up by the unit’s powerful 7600K 21 LEDs.

In terms of filtration, this aquarium has an efficient 3-stage filter that does the mechanical, chemical and biological filtration while neatly hidden inside the column pedestal. This helps maintain its simple but elegant appearance from the outside.

Though expensive, this is the best betta fish tank with a filter because it has the looks and the functionalities. Additionally, there is a 12-gallon option if you would like a bigger size with these same features.

Pros:

  • ​3D cube design on a narrow column pedestal
  • Bright ​21-LED lighting system
  • 3-stage filtration system

Cons:

  • Expensive
  • Glass construction makes it quite heavy

9. Aqueon 00817787 – Betta Fish Tank with a Divider

Aqueon BettaBow LED Desktop Fish Aquarium Kit
  • Tank Size: 2.5 gallons
  • Dimension: 11.5 x 7.6 x 12.5 inches
  • Material: Plastic

This Aqueon kit comprises of a simple desktop aquarium that has matching hood-and-base colors, and features a betta divider that splits the tank into two, enabling you to keep two bettas in one tank without any aggression.

In terms of lighting, the hood is equipped with LED lights that show the true colors inside the aquarium, making it look alive.

For filtration, this kit has a mechanical filter that incorporates the use of a cartridge to get rid of dirt and debris, leaving the fish wish cleaner waters to swim in.

To help you get started, this kit comes with Aqueon fish food, water care samples, and an aquarium set-up and care guide. With these, all you need is your fish and some water.

Pros:

  • Betta divider separates the tank into two.
  • LED lighting.
  • Built-in mechanical filtration.

Cons:

  • Lacks a chemical and biological filter.
  • Opaque lid blocks the view from the top.

How to Buy the Best Betta Fish Tank

How to Buy the Best Betta Fish Tank

1. Tank Size

Bettas can be found naturally in the shallow streams and rice paddies of South East Asia. This means that they can survive in a small volume of water.

That said, these fish are majestic and require the best environment to grow and flourish. Such an environment includes a large tank, which is recommended to be about 3 – 5 gallons in capacity.

However, the bigger it is, the better and for this reason, Marina's 15266A1 is highly recommended. ​

It is important to also consider the space that you have ​because large tanks require more space. Therefore, before buying a betta fish tank, it is best to consider the biggest one that can fit in your space.

2. Shape

An aquarium’s shape is important because of the view. Normally, square or rectangle faced tanks have a limited view as compared to rounded faces.

Rounded ​shapes such as the crescent-shaped Tetra 29003 also look much better because their design is a bit unique.

This, however, cannot be said to be the best tank to buy. People have different preferences and thus, whichever shape looks good to you is the best for you.

3. Material

Betta fish tanks are usually made from glass or plastic. In fact, all fish tanks are made from either one of these materials.

Glass tanks are very clear and maintain this clarity all through their lifespan. They are also scratch resistant, which means that you can use tough scrubbers to get rid of stuck stains inside.

On the downside, glass is very brittle and requires very gentle handling. Glass is also heavier and costs much more than plastic.

Plastic tanks are much stronger than glass; they do not break or crack easily. They are also affordable and very lightweight.

However, plastic scratches easily and might discolor overtime, obstructing the once clear views to the fish, water, plant, and décor inside.

Buying Advice: if you are on a budget, a plastic aquarium like Tetra's 29050 will do. If you can afford it, buy a glass aquarium such as MarineLand's ML90609 because it is the best option.   

4. Filtration

Even though bettas originate from still waters, it is important to have a filtration system for your tank so that the fish can live stress-free.

Aquariums with 3-stage filtration systems like Fluval's 10516A2 are the best ones to buy because they provide a complete filtration process.

This leaves you with very little maintenance work but they require a constant power supply and are quite expensive.

2-stage filtration systems, like the one in Tetra's 29003, are the next best option, leaving you with the task of changing the water every once in a while due to ammonia build-up.

Aquaponics aquariums and filter-less tanks such as Penn-Plax's APON1 are ideal for people living in areas with an erratic power supply system because they require no mains power to function. However, ​you must change the water regularly.

It is important to note that even with a filter-less fish tank, you can buy a separate filtration system and run it alongside the fish tank so as to reduce your maintenance work.    

5. LED lighting

LED lighting is important for two reasons. First, the light is important for showcasing the fish’s bright colors and fins in the best way possible against a background of plants and decorations.

Second, bettas need a good feeding and resting pattern. White and blue LEDs like the ones in MarineLand's ML90609 are important for this because they simulate daylight when the fish can eat and a moon glow effect to simulate the nighttime when the fish can rest.

Thus, LED lights, and especially a combination of white and blue lights, are important for a betta's health and should be considered before buying any tank.

However, they can also be bought separately if your tank does not feature them.  

Tips for Setting up the Betta Fish Tank

Tips for Setting up the Betta Fish Tank

After you have found the perfect betta fish tank, setting it up is the next important thing that you should do. The most important steps in this process include the following. 

1. Finding a suitable location

The perfect spot for a betta fish tank is close to a window because of the light. However, make sure that it is not under direct sunlight and is out of reach from other pets in the house.

2. Set the filter pump to low speed

A water filter is vital for a betta’s survival in the tank. It will maintain the water quality at optimum levels that are conducive for the fish’s survival.

However, the pump running the filter should be set to low speed because bettas are used to gentle water currents. If you want to buy an external filter, ensure that it has adjustable water flow settings or is labeled as gentle.

3. Fill the tank

Add the dust-free aquarium substrate, set up the plants and decorations, and fill the tank with water. After this, run the filter just to make sure that it works.    

4. Install the water heater

Bettas are tropical fish that do well in water that is between 78 and 82ºF. Therefore, you need to install a water heater near the mouth of the filter for even water heating.

Use a thermometer to ensure that the heater works effectively at maintaining the temperatures at this level.

5. Add the dechlorinator and conditioner

Finally, add the required dose of a water dechlorinator and conditioner so as to treat the water and make it safe for the fish. After this, you can put the betta inside and let it take in the new environment.

Conclusion

Betta fish are good choices for fish beginners. Generally, they require smaller aquariums as compared to other similar sized fish and thus, finding their tanks is easier and cheaper.

​That said, MarineLand's ML90609 stands out as the best betta fish tank because it can comfortably accommodate tall plants, is medium sized, has a white and blue lighting system and a 3-stage filtration system.