Best 2-Gallon Aquariums of 2026
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2-gallon aquariums are perfect for those who want to keep fish or other aquatic creatures at home without taking up too much space. These small aquariums are compact and easy to maintain, making them ideal for beginners or those with limited experience in fishkeeping. They come in a variety of shapes and designs, including classic rectangular tanks and modern, curved models. 2-gallon aquariums are also affordable, making them a great option for those on a budget. Whether you want to keep a few small fish or showcase a beautiful aquatic plant, a 2-gallon aquarium is a great choice.
At a Glance: Our Top Picks
Top 10 2-Gallon Aquariums
COOSPIDER Betta Fish Tank Self Cleaning Glass 2 Gallon Small Nano Aquarium Starter Kits Desktop Room Decor w/LED Light Decorations & Whisper Filters Water Pump
The COOSPIDER Betta Fish Tank is a 2-gallon glass aquarium starter kit with LED light decorations and whisper filters, ideal for betta fish, shrimp, and more. The easy setup makes it convenient for beginners. The self-cleaning feature with a quiet 3-in-1 filter reduces water changes, keeping the tank crystal clear and adding air. The high-quality glass construction ensures durability and easy cleaning. It serves as a room decor piece, adding color to your space without disturbing your peace.
VEVOR 2 Gallon LED Aquarium Tank
The VEVOR LED Aquarium offers a smart setup with self-cleaning, oxygenation, and water circulation that helps you maintain a healthy environment with less frequent water changes. You can personalize your tank easily by adding decorations or plants, making fishkeeping simple and enjoyable. The tank features 7 different lighting colors, allowing you to create a vibrant and appealing display that highlights your fish’s natural beauty. It also includes a real-time temperature monitor with a sleek LED display, so you can keep an eye on your fish’s comfort. Made from clear, sturdy glass with curved corners, this aquarium provides an unobstructed and sharp view of your aquatic pets.
TARARIUM Small Fish Tank
The TARARIUM 2 Gallon Glass Aquarium is a self-cleaning fish tank that is perfect for beginners and experienced fish keepers alike. Its complete filter system ensures that the tank stays crystal clear, reducing the need for frequent water changes. The tank also features colorful LED lights that create a visually stunning display, making your fish and plants look even more beautiful. Made entirely of glass, this tank is durable and built to last. It is a great gift idea for anyone who loves fish and makes for a stylish addition to any room. With its 180-day warranty and friendly customer service, you can purchase this tank with confidence.
TARARIUM 2 Gallon Glass Aquarium Starter Kit
The TARARIUM Mini Fish Tank is made from high-quality, ultra-clear glass that has passed tough drop and shatter tests, ensuring durability and a clear view of your aquatic pets. This compact aquarium is perfect for small fish like bettas, shrimp, and guppies, providing a cozy and safe environment. Thanks to its self-cleaning system, you won’t need to change the water frequently, making maintenance easy and convenient. Plus, the included filter and LED plant light help keep the tank clean and vibrant, creating a beautiful display for your home or kids’ room. It’s a simple, reliable choice for both beginners and experienced fish keepers.
VEVOR 2 Gallon Arch Smart Fish Tank
The VEVOR Smart Fish Tank offers a self-cleaning system that helps keep your aquarium water fresh and reduces the need for frequent changes, making fish care easier for you. It also includes adjustable lighting with three different colors, so you can set the perfect mood and highlight your fish’s natural beauty. The tank has a built-in hydroponic plant tray, allowing you to grow aquatic plants that improve the water environment while adding a touch of greenery to your space. Made from clear and durable GPPS material with curved corners, this tank gives you a great view of your fish and ensures long-lasting use.
Koller Products AquaView Aquarium
The Koller Products AquaView 2-Gallon 360 Aquarium is a trendy and easy-to-maintain aquarium perfect for tropical fish. It features energy-efficient LED lighting with 7 dazzling color selections to illuminate your fish, a powerful internal power filter that effectively removes pollutants, and crystal-clear clarity for optimum viewing. This aquarium is constructed of impact-resistant plastic, providing leak-proof assurance. Its dimensions are 10.2 DIA x 10.5 H Inches, making it ideal for all life stages.
AWXZOM 2 Gallon Cube Nano Tall Rimless Tank
The AWXZOM Cube Nano Tank is a small betta fish tank made of ultra-white glass, providing a more transparent visual effect than regular glass tanks. With its rich landscape design, this tank is suitable for all kinds of scenes. It can accommodate betta fish, guppies, angelfish, and other ornamental fishes, as well as turtles, reptiles, jellyfish, shrimp, moss, crabs, and insects. The 2-gallon tank is compact, measuring 7.8 x 7.8 x 7.8 inches, and is built with 5mm thick low-iron glass. Its size and material make it an ideal choice for creating a captivating underwater environment and showcasing your aquatic pets.
DPVPER 2-Gallon Rimless Low Iron Glass Aquarium
The DPVPER 2-Gallon Nano Tank is designed to fit perfectly on your desk or any small space, making it a stylish addition to your home or office. Its ultra-clear low iron glass ensures you see your fish and plants in their true colors without the typical greenish tint found in regular glass. You’ll appreciate the included tank mat that keeps the aquarium stable, prevents slipping, and reduces vibrations to protect both the tank and your furniture. Plus, the front panel’s size follows the golden ratio, offering a naturally balanced and visually pleasing view of your aquatic setup.
Vehipa 2 Gallon Smart Fish Tank
The Vehipa Smart Fish Tank offers a complete and easy setup with its all-in-one design, so you just add water and plug it in to enjoy a beautiful aquatic display. Its quiet 4-in-1 circulation system keeps the water clean and well-oxygenated, creating a healthy environment for your fish without noise disruption. The automatic feeder lets you set feeding times, making it perfect for busy days or trips away, so you never have to worry about feeding your fish. Plus, with 7 adjustable LED light colors and modes, you can customize the tank’s look to brighten up your space or create a relaxing mood effortlessly.
Geelin 2 Gallon Plastic Rectangular Aquarium
The Geelin Mini Plastic Aquarium is a compact and versatile tank perfect for your home or office. Its small size fits easily on desks and countertops, holding up to 2 gallons of water, so you can move it around wherever you like. Made from durable plastic, this tank is resistant to breaking if accidentally dropped, ensuring your aquatic pets or plants stay safe. Plus, its clear design gives you a great view of your bettas, shrimp, or even succulents. Beyond fish, you can get creative by using it as a unique display for plants or small creatures, making it a fun and practical addition to your space.
Frequently Asked Questions (FAQs)
1. What fish can be in a 2 gallon tank?
The two most popular fish for a small tank are bettas and angelfish. Other options include neon tetras, guppies, zebra danios, cherry barbs, otocinclus catfish, oscar cichlids (but not with other types of bottom feeders), goldfish (if you can provide enough room for them to grow), and other types of small fish.
2. How many fish can I put in a 2 gallon tank?
Regardless of the type of fish you choose, you should add 1 to 3 fish into your 2-gallon fish tank. Choosing between 1 or 3 depends on a few things as well. If you are dealing with small fish like guppies or small types of goldfish, you can always add two or three of them.
3. Is a 2 gallon tank big enough for a betta?
To thrive, you need more room than that. Well, the same goes for your betta. The ideal sized tank for a betta is 5 gallons or larger for a single male or female betta. There are a number of reasons why 5 gallons should be the minimum size you consider, some of which are quite technical.
4. Does a 2 gallon tank need a filter?
Tanks that are 2.5 gallons or smaller, shouldn't have a filter because they can do more harm than good. Filters in small tanks cause strong currents, which can toss a betta fish around and stress them out.
During our 2-gallon aquarium research, we found 24 2-gallon aquarium products and shortlisted 10 quality products. We collected and analyzed 32,893 customer reviews through our big data system to write the 2-gallon aquariums list. We found that most customers choose 2-gallon aquariums with an average price of $47.54.
The 2-gallon aquariums are available for purchase. We have researched hundreds of brands and picked the top brands of 2-gallon aquariums, including COOSPIDER, VEVOR, TARARIUM, Koller Products, AWXZOM. The seller of top 1 product has received honest feedback from 179 consumers with an average rating of 4.4.
Janie Foster is a writer & pet blogger from Los Angeles, she enjoys living with her two cats and three dogs. She owned her first dog 10 years ago and then started her personal blog to record her dog's daily life. Throughout her personal life, she has developed specialized knowledge in pet care, pet nutrition, feeding habits, and more.