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10 Best Betta Fish Tanks 2026 in the United States
#1
Winner
Aqueon Aquarium Starter Kit with Smart Clean Filtration and LED Lighting, Freshwater and Saltwater Fish, Perfect for Gouramis, Barbs, Bettas, 20-Gallon
The Aqueon Aquarium Starter Kit is a solid choice for anyone starting with betta fish or other tropical freshwater species. It offers a spacious 20-gallon glass tank, which is larger than the typical small betta bowls, giving your fish plenty of room to swim and thrive. The kit includes an internal SmartClean filtration system that simplifies water maintenance and helps keep the tank clean, which is especially helpful for beginners. Heating is already set with a 50W preset heater maintaining a steady 78°F, ideal for bettas and most tropical fish, so there's no need for guesswork.
Rating
10.0
Chosen by1,498
Tank Size
Filtration
Heating
Most important from
104 reviews
#2
GloFish 20 Gallon Aquarium Kit with LED Lights, Decor Heater and Filter
The GloFish 20 Gallon Aquarium Kit offers a solid setup for betta fish enthusiasts, especially those who appreciate a visually striking tank. With a 20-gallon size, the tank provides ample swimming space, which is great since bettas enjoy room to explore. The included Tetra Whisper 20 Filter ensures gentle water circulation, important for bettas as they prefer calmer waters. Heating is covered by a Tetra Mini UL Heater, allowing you to maintain the warm temperatures bettas need to thrive. The LED hood and additional blue LED light stick create vibrant, neon lighting that highlights the GloFish plants and decorations, making the tank colorful and eye-catching.
Rating
10.0
Tank Size
Filtration
Heating
Most important from
4512 reviews
#3
3.5 Gallon Self Cleaning Fish Tank, Aquarium Starter Kit for Betta, Shrimp & Small Fish, Betta Fish Tank with Heater, Thermometer, LED Light, Hidden Multi-stage Filtration System and Water Changer Kit
The eWonLife 3.5 gallon self-cleaning fish tank is a compact and convenient starter kit designed especially for betta fish, shrimp, and small schooling fish. Its size is suitable for a single betta or a small nano community, making it a good choice for desks or small spaces. The hidden multi-stage filtration system with sponge, ceramic rings, and quartz balls helps maintain water clarity and reduces the frequency of water changes, which is beneficial for beginners.
Rating
9.7
Tank Size
Filtration
Heating
Most important from
50 reviews
Top 10 Best Betta Fish Tanks 2026 in the United States
#1
Winner
Aqueon Aquarium Starter Kit with Smart Clean Filtration and LED Lighting, Freshwater and Saltwater Fish, Perfect for Gouramis, Barbs, Bettas, 20-Gallon
Aqueon Aquarium Starter Kit with Smart Clean Filtration and LED Lighting, Freshwater and Saltwater Fish, Perfect for Gouramis, Barbs, Bettas, 20-Gallon
Tank Size: 20 Gallons
Filtration: SmartClean medium internal power filter
Heating: 50W heater preset at 78°F
Lighting: Low-profile LED hood with feeding door
Tank Cover: Low-profile hood with feeding door
Chosen by 1498 this week
GloFish 20 Gallon Aquarium Kit with LED Lights, Decor Heater and Filter
GloFish 20 Gallon Aquarium Kit with LED Lights, Decor Heater and Filter
Tank Size: 20 Gallons
Filtration: Tetra Whisper 20 Filter
Heating: Tetra Mini UL Heater
Lighting: LED hood with blue LED stick
Tank Cover: LED hood
Decorations and Plants: Synthetic neon plants and anemone
3.5 Gallon Self Cleaning Fish Tank, Aquarium Starter Kit for Betta, Shrimp & Small Fish, Betta Fish Tank with Heater, Thermometer, LED Light, Hidden Multi-stage Filtration System and Water Changer Kit
3.5 Gallon Self Cleaning Fish Tank, Aquarium Starter Kit for Betta, Shrimp & Small Fish, Betta Fish Tank with Heater, Thermometer, LED Light, Hidden Multi-stage Filtration System and Water Changer Kit
Tank Size: 3.5 Gallons
Filtration: Hidden multi-stage filter with sponge
Heating: Built-in heater at 78°F
Lighting: LED lighting
Tank Cover: Secure lid recommended
Decorations and Plants: Use decorative plants recommended
Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration,Black
Marineland Portrait Glass LED Aquarium Kit, 5 Gallons, Hidden Filtration,Black
Tank Size: 5 Gallons
Filtration: 3-stage system
Lighting: white and blue LEDs
Tank Cover: clear glass canopy
Vimvins 5 Gallon Glass Small Fish Tank with Filter Light and Lid, Betta Aquarium Starter Kits
Vimvins 5 Gallon Glass Small Fish Tank with Filter Light and Lid, Betta Aquarium Starter Kits
Tank Size: 5 Gallon
Filtration: two-stage filter: physical and biochemical
Heating: not included, must provide separately
Lighting: smart adjustable LED, simulates natural light
Tank Cover: lid prevents fish escape and evaporation
Substrate: not included
Decorations and Plants: not included
Related Products
Up to 23% off
Aqueon LED MiniBow Aquarium Kit with SmartClean Technology, White, 2.5 Gallon
Aqueon LED MiniBow Aquarium Kit with SmartClean Technology, White, 2.5 Gallon
Tank Size: 2.5 Gallons
Filtration: power filter with SmartClean
Heating: None, heater sold separately
Lighting: built-in LED lighting
Tank Cover: white hood
Substrate: None
Decorations and Plants: None
Aqueon Aquarium Fish Tank Starter Kit with LED Lighting 10 Gallon Fish Tank
Aqueon Aquarium Fish Tank Starter Kit with LED Lighting 10 Gallon Fish Tank
Tank Size: 10 Gallons
Filtration: Filtration system with LED
Heating: Preset heater at 78 degrees
Lighting: LED lighting
Tank Cover: Low-profile LED hood
Aqueon LED MiniBow Small Aquarium Fish Tank Kit with SmartClean Technology, Black, 5 Gallon
Aqueon LED MiniBow Small Aquarium Fish Tank Kit with SmartClean Technology, Black, 5 Gallon
Tank Size: 5 Gallons
Filtration: Power filter with SmartClean
Lighting: Low-profile LED hood
Tank Cover: Basic cover
Decorations and Plants: Minimal
Fluval SPEC Aquarium Kit, Aquarium with LED Lighting and 3-Stage Filtration, 5 Gallon, White
Fluval SPEC Aquarium Kit, Aquarium with LED Lighting and 3-Stage Filtration, 5 Gallon, White
Tank Size: 5 Gallons
Filtration: 3-stage filtration
Heating: Not included
Lighting: LED lighting
Tank Cover: Glass cover
#10
Fluval Flex 9 Gallon Glass Aquarium Kit, Black
Fluval Flex 9 Gallon Glass Aquarium Kit, Black
Tank Size: 9 Gallon
Filtration: built-in 3-stage mechanical, chemical, biological
Lighting: customizable LED with 7500K white, RGB
Tank Cover: includes easy-feed opening
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Buying Guide for the Best Betta Fish Tanks
Choosing the right betta fish tank is crucial for the health and happiness of your fish. Betta fish, also known as Siamese fighting fish, are known for their vibrant colors and flowing fins. They require specific conditions to thrive, so it's important to consider several key factors when selecting a tank. Understanding these factors will help you create a suitable environment for your betta, ensuring they live a long and healthy life.Tank SizeTank size refers to the volume of water the tank can hold, usually measured in gallons or liters. This is important because betta fish need enough space to swim and explore. A tank that is too small can lead to stress and health issues. Tanks under 2.5 gallons are generally too small, while tanks between 2.5 to 5 gallons are considered the minimum for a single betta. For optimal health and happiness, a tank of 5 gallons or more is recommended. Larger tanks also make it easier to maintain stable water conditions. Choose a tank size based on the space you have available and the number of bettas you plan to keep.
FiltrationFiltration refers to the system that keeps the water clean by removing waste and toxins. This is important because clean water is essential for the health of your betta fish. Filters come in various types, such as sponge filters, internal filters, and hang-on-back filters. For bettas, a gentle filter is best, as strong currents can stress them out. Look for filters with adjustable flow rates or those specifically designed for betta tanks. If you have a small tank, a sponge filter might be sufficient. For larger tanks, an internal or hang-on-back filter may be more appropriate. Choose a filter that matches the size of your tank and provides gentle water movement.
HeatingHeating refers to the use of a heater to maintain a stable water temperature. Betta fish are tropical fish and thrive in water temperatures between 76-82°F (24-28°C). A heater is important because it ensures the water stays within this range, preventing temperature fluctuations that can stress or harm your betta. Heaters come in different wattages, and the right one for you depends on the size of your tank. For small tanks (up to 5 gallons), a 25-watt heater is usually sufficient. For larger tanks, you may need a 50-watt or higher heater. Choose a heater with an adjustable thermostat to maintain the ideal temperature for your betta.
LightingLighting refers to the light source used to illuminate the tank. Proper lighting is important for the health of your betta and any live plants you may have in the tank. Betta fish do not require intense lighting, but a regular day-night cycle helps regulate their behavior and health. LED lights are a popular choice because they are energy-efficient and provide a natural-looking light. Some tanks come with built-in lighting, while others may require a separate light fixture. Choose lighting that provides a gentle, consistent light and enhances the colors of your betta without causing stress.
Tank CoverA tank cover is a lid or hood that fits over the top of the tank. This is important because betta fish are known to jump, and a cover prevents them from escaping. It also helps reduce evaporation and keeps dust and debris out of the water. Tank covers come in various materials, such as glass, plastic, or mesh. Some covers include built-in lighting or feeding holes for convenience. Choose a cover that fits securely on your tank and provides easy access for feeding and maintenance.
SubstrateSubstrate refers to the material that lines the bottom of the tank. This is important because it affects the tank's appearance and can provide a habitat for beneficial bacteria. Common substrates include gravel, sand, and specialized plant substrates. For betta tanks, smooth gravel or sand is recommended to prevent injury to their delicate fins. If you plan to have live plants, choose a substrate that supports plant growth. The substrate should be easy to clean and not alter the water chemistry. Choose a substrate that complements your tank's design and meets the needs of your betta and any plants.
Decorations and PlantsDecorations and plants refer to the items placed inside the tank to create a stimulating environment. This is important because betta fish enjoy exploring and hiding, which reduces stress and promotes natural behaviors. Decorations can include caves, driftwood, and ornaments, while plants can be live or artificial. Live plants provide additional benefits, such as oxygenation and natural filtration. When choosing decorations, ensure they have no sharp edges that could harm your betta. Select plants and decorations that provide hiding spots and enhance the tank's aesthetic appeal. Choose items that are safe for bettas and create a visually pleasing environment.