6 Top 20-gallon Community Tanks For Betta, Saltwater & Other

Do you love different fish breeds and you’re looking for a perfect 20-gallon community tank?

You’re not sure about design, equipment, and other features?

Don’t worry, we are here to help you with picking. We reviewed the 6 best models and places them in different categories. If you’re a beginner or you want to know more information before shopping, check our guide at the end of this post.

6 Top 20-gallon Community Tanks

BEST OF BEST 20-GALLON COMMUNITY TANK

Tetra Aquarium Fish Tank Kit

Functional Design
If you need a model that has all the needed functions and equipment to start an aquatic home, this Tetra aquarium is one of the most popular on the market Not that only it is functional, the tank will easily catch everyone’s attention when they enter the living room.

Glass Construction
The aquarium is made of sturdy materials so you can be sure it will last you for years. Sturdy glass construction will provide a crystal clear view from all sides. This rectangular 20-gallon community tank is strongly siliconized on the edges to prevent any leaking. It has a silicon bottom to prevent bumps.

Multiple Fishes
With a measurement of 27.88 x 16.13 x 20.38 inches, this aquarium is suitable for different fish breeds including bettas, tetras, goldfish, and much more. You can fit multiple fishes inside and create a beautiful aquatic home with additional decorations like natural plants and gravel.

Filtration System
This 20-gallon glass aquarium is fully equipped with a great filtration system and heater so your fishes can always have a clean environment and optimal water temperature. LED lights will reflect the whole interior. In the package, you will get a fishnet, samples, and an artificial plant for decoration.

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BEST CORNER 20-GALLON COMMUNITY TANK

SeaClear Acrylic Aquarium

Hexagonal Shape
If you want a larger model but don’t have much space in your home or apartment, thiS SeaClearaquarium is a perfect choice. It comes in hexagonal shape which is a very popular and unique shape for corners. This model will provide an easy view from all sides.

Acrylic Material
The aquarium is made of a sturdy and durable acrylic material which is much lighter than the glass so you can easily move it from side to side. Furthermore, acrylic material has great transparency and it will easily go with your home decoration. A simple design can easily fit in every living space.

Small Fishes
This 20-gallon community tank has 15 x 15 x 24 inches, and it is suitable for smaller fish breeds. You can add artificial and natural plants inside, so your fishes can enjoy in natural habitat. Place it on a stand that can easily fit this shape.

Water Application
The model is suitable for salt and freshwater application, so you can pick fish breeds you like the most. So you can have the best view at night, this 20-gallon hexagon aquarium has a light fixture at the top. Additional equipment is not included so you can pick the best accessories depending on your preferences.

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BEST CHEAP 20-GALLON COMMUNITY TANK

Aqueon Long Aquarium

Minimalist Design
If you only want an affordable tank without any additional equipment, this Aqueon tank is one of the best on the market. Simple and minimalist design is made for easy fitting with any style in a home or apartment. The aquarium is made of durable material and it is the perfect choice for beginners.

Long Tank
Aquarium has a long rectangular shape which will provide enjoyable swimming and more space for different fish breeds. It has a sturdy glass construction that is strongly siliconized on the edges. At the bottom and top is black silicone to prevent any bumps and sliding.

Sturdy Stand
This 20-gallon community tank has 30.25 x 12.5 x 12.75 inches, so make sure you place it on a sturdy long stand or commode that is stable enough to hold the weight of it. Glass aquarium will provide a crystal clear view from all sides. Tank is suitable for salt and freshwater application.

Easy Feeding
Because of its opened top, you can easily feed your fishes on a daily basis. We recommend adding coral reefs, natural plants, and gravel inside so your fishes can have a more natural habitat. This 20-gallon long planted aquarium will beautifully fulfill your home decoration.

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BEST DECORATION 20-GALLON COMMUNITY TANK

GloFish Aquarium Kit Fish Tank

Colorful Model
If you want a model that will catch everyone’s attention and add colors to your living space, this Glofish tank is the best choice. Aquarium comes with all needed equipment which is important to start an aquatic home, so you’re a beginner you will love this tank.

Rectangular Shape 
This sturdy glass aquarium has a rectangular shape, like most 20-gallon breeder tanks. It has a silicone bottom in black color and a low-profile hood at the top. Strong construction will last you for a long time. Glass provides a crystal clear view so you can enjoy it in beautiful colors every day.

Artificial Plants
The aquarium is suitable for fish breeds with different colors and shapes. We recommend some colorful models that will perfectly go with the neon lights. To add more fun to the fish habitat, in the package you will get colorful artificial plants that you can place as decoration inside.

Optimal Water
The hood has a hole so you can easily feed your fishes. This 20-gallon community tank comes with a filter and a heater that will keep the water clean and optimal. You will get a fishnet for easier catching and food and water care samples. Aquarium measures 27.88 x 16.13 x 20.38 inches.

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BEST PLANTED 20-GALLON COMMUNITY TANK

SeaClear Acrylic Aquarium Junior Executive Kit

Space-saving Design
This aquarium has a great space-saving design and it can easily fit in every corner of the room. The aquarium is made of sturdy materials so you can be sure it will last you for a long time. It has a very simple design so you can match it with the tones in your home.

Acrylic Tank
The tank has a hexagonal shape which will provide a great view from all sides. It is a rimless model made of acrylic material that won’t break easily if you accidentally drop it. Because it is lightweight you can easily move it from side to side and store it when it is not in the use.

Cobalt Blue Background
This 20-gallon community tank has a 15 x 15 x 24 inches so it can easily fit on every stand or commode. The aquarium comes with a beautiful cobalt blue background. You can fit multiple small and mini fish breeds, like betta, tetra, goldfish, or clownfishes.

Included Features
For the best reflection, this 20-gallon rimless aquarium has a light fixture so you can enjoy the view at night. The powerful filter will purify water and keep the environment fresh and clean. You will get a thermometer o you can always check the temperature. Artificial plants are included, as well.

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BEST BETTA 20-GALLON COMMUNITY TANK

Marina LED Aquarium Kit

Easy-fitting Model
For betta and other similar fish breeds, this model is one of the most popular on the market, especially for beginners. Aquarium comes with a whole setup that will save you time with daily maintenance. It has a very simple, easy-fitting design, so you can place it in every corner.

Quick Feeding
Betta community tank 20 gallons is made of thick and sturdy glass with a silicone bottom to prevent sliding. It comes in a rectangular shape so you can place it on every sturdy commode that can hold the weight of it when it’s filled with water. The hood has a hole for easier feeding.

Natural Habitat
This aquarium has 30 x 18 x 22.3 inches, and you can place multiple fish breeds inside. To provide a more natural look, add artificial or natural plants or a larger coral reef in the middle. Glass has great transparency so you can have a crystal clear view from all sides.

Clip-on Filter
20-gallon community tank includes a clip-on filter that can be easily installed. The filtration system will keep water fresh so your fishes can stay healthy. A digital thermometer will show temperature. This betta fish starter kit includes fishnet, samples, and a guide for easier setup.

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How To Pick The Best 20-gallon Community Tank?

If you still not sure which model will be the best choice for your living space, you will, for sure, find an answer in our guide. Check which are the most important features that you need to keep in mind before shopping.

Why You Need It? – Aquariums are one of the best choices if you want pets but don’t have much time with daily maintenance. They are a great decorative piece in every home and can easily fulfill style in living space. You can pick between many different shapes and colors and fit them with the tones in your house.

Sturdy Tank – One of the most important features is definitely the quality of the tank, so you can be sure your fishes are safe in the new habitat. The tank needs to be made of a high-quality material that is thick enough to not break easily if you accidentally drop it or kick it. Make sure it is strongly siliconized on the edges. Usually, most of the 20-gallon fish tanks with lids are made of glass or acrylic material. Acrylic is much lighter but much stronger than glass.

Fish Breeds – Depending on which fish breeds you prefer, pick the ones that are not too aggressive and can easily go along with each other. You can choose different fish colors, shapes, and sizes. Make sure that the fishes are similar in size. In a 20-gallon aquarium, you can fit multiple small and mini fishes like tetra, betta, or tropical ones.

Included Equipment – LED lights are a must-have so you can enjoy beautiful reflection, especially at night. You can pick a 20-gallon community tank with fluorescent lights if you love colors. Make sure the tank has a great filtration system so you don’t have to worry if the environment is clean and safe for the fishes. Most models come with other accessories like plants, fishnet, and samples.