6 Best 20-gallon Breeder Tanks For Various Fish Species 2021




Are you interested to start an aquatic home and buy a new 20-gallon breeder tank?

You’re not sure about features and equipment?

You are at the right place. We picked 6 models so you can choose the best cheap, with filter, planted, for betta and tetra fishes. If this is your first time buying an aquarium, you definitely need to check our guide at the end of this post, where you can find many needed information.

The Summary

BEST OF BEST 20-GALLON BREEDER TANK
BEST OF BEST 20-GALLON BREEDER TANK summaryTetra Aquarium Fish Tank Kit
This functional model with a whole setup is the perfect choice for beginners. This glass aquarium can easily fit in every living space.
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BEST CHEAP 20-GALLON BREEDER TANK
BEST CHEAP 20-GALLON BREEDER TANK summaryAqueon Long Aquarium
If you only need a new tank without additional equipment, this model is a great choice. It has long construction which will provide easier fish swimming.
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BEST WITH FILTER SALTWATER SAFE AQUARIUM
BEST FILTER 20-GALLON BREEDER TANK summaryAqueon Aquarium Starter Kit
An aquarium with a simple design that easily matches home decoration. This rectangular tank is suitable for marine and freshwater applications.
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BEST PLANTED 20-GALLON BREEDER TANK
BEST PLANTED 20-GALLON BREEDER TANK summaryGloFish Aquarium Kit Fish Tank
If you want to add some fluorescent colors to your home, this model is a great choice. The colorful aquarium will definitely catch everyone’s attention.
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BEST BETTA 20-GALLON BREEDER TANK
BEST BETTA 20-GALLON BREEDER TANK summarySeaClear Acrylic Aquarium Combo Set
Sturdy acrylic aquarium comes with beautiful cobalt blue background. This model is a great choice for fishes of different sizes and breeds.
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BEST TETRA 20-GALLON BREEDER TANK
BEST TETRA 20-GALLON BREEDER TANK summaryMarina LED Aquarium Kit
If you love minimalist design, this tank is a great option. Sturdy construction with a whole setup for easy maintenance is perfect for beginners.
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6 Best 20-gallon Breeder Tanks

BEST OF BEST 20-GALLON BREEDER TANK

Tetra Aquarium Fish Tank Kit

Functional Model
Even if this model has a very simple design, it is the most functional on the market and comes with all the needed features. You can easily fit it in your living room. The aquarium is made of sturdy materials so you can be sure it will last you for years.

BEST OF BEST 20-GALLON BREEDER TANK

Glass Construction
20 breeder tank comes in a rectangular shape to fit most of the commodes and stands. Make sure that the base is sturdy enough to hold the weight of it. It is fully made of thick glass which has great transparency. Silicone base will prevent any bumps and sliding.

Water Application
This 20-gallon breeder tank has 27.88 x 16.13 x 20.38 inches and it is suitable for fresh water and marine application. You can fit multiple fish breeds of different sizes inside and use a divider or a separate tank when it is time for breeding.

Tetra Aquarium Fish Tank Kit

Included Features
For a clean environment, this 20-gallon glass aquarium has a great filtration system and a heater for optimal water temperature. LED lights will reflect the whole tank at night. In the package, you will get an artificial plant for decoration as well as other equipment like fishnet, food, and water care samples.

In Short:

  • The functional model with all needed features
  • Sturdy glass construction
  • Suitable for freshwater and marine application
  • Great filtration system with heater
  • Included artificial plant for decoration

BEST CHEAP 20-GALLON BREEDER TANK

Aqueon Long Aquarium

Simple Design
If you’re looking for an affordable model that can easily match with the rest of your home decor, this Aqueon is one of the best options. Aquarium has a very minimalist design which is perfect for easy fitting. It is made of high-quality materials so you can have it for a long time.

BEST CHEAP 20-GALLON BREEDER TANK

Silicone Protection
The aquarium is made of thick glass and it is strongly siliconized on the edges. It is a completely leakproof model, with silicone protection at the bottom and top, that will prevent bumps. Glass will provide great transparency, so you can have a perfect view from all sides.

Long Tank
The 20-gallon breeder tank is longer than the rest of the models from our reviews, which will provide more space for swimming. It has 30.25 x 12.5 x 12.75 inches and it is suitable for different fish breeds. Add decorative plants, gravel, stones, and other decoration.

Aqueon Long Aquarium

Sturdy Stand
The aquarium is suitable for marine and saltwater applications. Place this 20-gallon long reef tank on a sturdy stand that can hold the weight. Because it has an open-top, you can easily feed your fishes on a daily basis. Additional equipment is not included.

In Short:

  • Affordable tank for living spaces
  • Sturdy construction made of glass
  • Silicone bottom and top
  • Long aquarium for enjoyable swimming
  • Opened top for easy feeding

BEST FILTER 20-GALLON BREEDER TANK

Aqueon Aquarium Starter Kit

Easy Fitting
For beginners and those who want a whole setup for easier maintenance, this Aqueon model is the best option for your living space. Minimalist design will provide easy fitting, and you can place it on every stand in your home. Sturdy construction will last you for years.

BEST WITH FILTER SALTWATER SAFE AQUARIUM

Low-profile Hood
The aquarium is made of thick and durable glass with a leakproof design. At the bottom, it has silicone protection in black color and a low profile hood with the lights is on the top. The rectangular 20-gallon breeder tank is suitable for fresh and saltwater applications.

Multiple Fishes
With a measurement of 24.25 x 12.5 x 19.5 inches, this 20-gallon aquarium starter kit is suitable for all fish breeds, including, gold, tetra, betta, and tropical breeds. You can fit multiple fishes inside as well as decorations like plants, coral reefs, and gravel. We are sure fishes will enjoy themselves in the new habitat.

Aqueon Aquarium Starter Kit

Powerful Filter
To save you time with a daily routine, this tank is equipped with a powerful filter. The filter has a flash indicator so you know when it is time to change the cartridge. The heater comes with a thermometer for optimal temperature. This aquarium comes with a fishnet, and samples for fishes.

In Short:

  • Rectangular aquarium with a simple design
  • Low profile hood with LED lights
  • Suitable for different fish breeds
  • Powerful filter with cartridge
  • Heater with thermometer included in the package

BEST PLANTED 20-GALLON BREEDER TANK

GloFish Aquarium Kit Fish Tank

Colorful Model
If you love colorful models and you’re looking for one that will catch everyone’s attention, we recommend buying this tank. Even if it has a very simple design, we are sure you will absolutely love it. It comes with all needed features and equipment which will create a real aquatic home.

BEST PLANTED 20-GALLON BREEDER TANK

Strong Glass
The aquarium comes in a rectangular shape, like the most of models from our revies. It is made of strong glass which will provide great transparency. You can place it on every sturdy stand or commode that is stable enough to hold the weight of it when it is filled with water.

Colorful Plants
This 20-gallon breeder tank has 27.88 x 16.13 x 20.38 inches and you can use it for all fish breeds. We recommend colorful fishes of different shapes and sizes. LED lights will beautifully reflect colors and you will enjoy the view every day. In the package, you will get colorful plants for decoration.

GloFish Aquarium Kit Fish Tank

Daily Maintenance
To save you time with cleaning and daily maintenance, this 20-gallon community tank has a powerful filtration system with a heater, so you can be sure your fishes have the best environment. The package includes food and water care samples as well as fishnet for easier catching.

In Short:

  • Sturdy construction for durability
  • Suitable for multiple fishes
  • LED lights for neon effect
  • Included colorful artificial plants
  • Filter with heater for daily maintenance

BEST BETTA 20-GALLON BREEDER TANK

SeaClear Acrylic Aquarium Combo Set

Cobalt Blue Color
If you love models with simple, rimless designs, which can easily match with the home decoration, this Seaclear aquarium for fishes is the best choice for you. The aquarium is made of strong material which will provide safety. To add colors to your home, this tank comes with a background in cobalt blue color.

BEST BETTA 20-GALLON BREEDER TANK

Acrylic Construction
Like the other 20-gallon breeder tanks, this model also comes in a rectangular shape. It is made of acrylic material, which is much stronger than glass. Even if it has a strong structure, the acrylic tank is very lightweight, so you can place it on every stand in your home.

Natural Habitat
This 20-gallon acrylic aquarium has  24 x 13 x 16 inches, and it is suitable for different fish breeds. You can combine betta and other smaller or larger fishes that are not too aggressive. We recommend adding natural or artificial plants, so your lovely pets can have beautiful habitat.

SeaClear Acrylic Aquarium Combo Set

Great Reflection
For best reflection, the aquarium is equipped with a reflector at the top. A transparent lid will prevent any fish jumping and it has a hole for quick feeding on a daily basis. Additional equipment is not included in the package, so you can choose the best accessories for marine and freshwater applications.

In Short:

  • Simple rimless model
  • Sturdy acrylic construction
  • Suitable for multiple fishes of different sizes
  • Reflector for a better view
  • Transparent lid to prevent jumping

BEST TETRA 20-GALLON BREEDER TANK

Marina LED Aquarium Kit

Functional Model
This functional model has a very minimalist design so you can place it in every corner of your home and match it with the style in your interior. Tank for the fish breeds is made of sturdy materials and included all needed equipment for beginners.

BEST TETRA 20-GALLON BREEDER TANK

Sturdy Tank
20-gallon breeder tank has a rectangular shape for easier fitting on a stand and commodes in every living area. It is made of thick and sturdy glass with great transparency for a perfect view. Don’t worry about safety, glass is strongly siliconized to prevent leaking or other damage.

Stable Stand
The aquarium measures 30 x 18 x 22.3 inches and has 35 pounds, so make sure that the base you’re placing it on is sturdy and stable enough to hold the weight. Tank is suitable for multiple bettas and other fish breeds of different sizes, colors, and shapes.

Marina LED Aquarium Kit

Easy Installation
A clip-on filter can be easily installed and it will provide a clean and fresh environment so your fishes can stay healthy and happy. This tetra 20-gallon aquarium comes with fishnet, food samples, and a guide for easier installation. LED lights will reflect the whole aquarium during the day.

In Short:

  • Functional glass aquarium
  • Suitable for bettas and other fish breeds
  • Rectangular shape for easy fitting
  • Easy installed clip-on filter
  • LED lights for reflection

How To Pick The Best 20-gallon Breeder Tank?

Aquariums are a great choice for living spaces, especially if you want to fulfill decoration in your home. If you still not sure which 20 breeder tank will be best for you, keep on reading. We picked the most important features and read all details.

Needed Equipment  – If this is your first time buying a breeding tank for fishes, there is some needed equipment so you can use the aquarium properly. Many of the models have dividers that you can buy separately, and use when it comes time for breeding. Dividers need to be strong and have vents for optimal water conditions. You can also use a smaller tank that can be easily installed inside.

Sturdy Tank – Always check if the tank is made of durable materials, so you can be sure it can hold the weight of water and be safe for use for a long time. Many models are made of either glass or acrylic material. Both materials are strong and durable, but for maximum safety, pick an acrylic 20-gallon fish tank with a lid. Check if it is strongly siliconized on the edges.

Fish Breeds – Depending on your preferences pick fish breeds you like to most and that can easily fit in the tank. Check which breeds can be combined together, and don’t choose aggressive ones. Most of the tanks are suitable for marine and freshwater applications but make sure to check them before buying. 20-gallon breeder tanks can fit multiple small and medium fishes.

Additional Features – Place the tank on a sturdy stand that can hold the weight of it, especially if you’re picking a glass model. The aquarium needs to have a hole for easier feeding. To save you time with maintenance, pick a model with included filtration system as well as a heater for optimal water temperature. Some models come with included accessories like plants, fishnet, and samples.

To Sum Up

The best 20-gallon breeder tank that we found on the market is Tetra Aquarium Fish Tank Kit. This aquarium has sturdy construction and it comes with all needed equipment and accessories for beginners. If you want to check our other top pick, read this post and choose the best 20-gallon axolotl tank. If you want a modern tank, we picked the best 20-gallon frog aquarium.




Diane
Diane has a Master’s degree in Economy. Her work experience began in 2016. when she graduated and got her first job in the pet company. The interest in pets and animals was increasing over time and finally, she decided to write about pets. On Petovly, her domain is dogs, cats, hamsters, and guinea pigs. She is in touch with many experts who share their professional knowledge with her helping her to complete the articles.