4 Top 20-gallon Long Rimless Aquariums For Any Fish Breed




Do you need to buy a new 20-gallon long rimless aquarium for your home or apartment?

You’re not sure which model to pick from the market?

You will, for sure, find the best one from our list. We picked the best 4 models and places them in different categories. Check all details, pictures, and guide at the end if you need more tips and recommendations before buying.

The Summary

BEST OF BEST 20-GALLON LONG RIMLESS AQUARIUM
BEST OF BEST 20-GALLON LONG RIMLESS AQUARIUM summarySeaClear Acrylic Aquarium Combo Set
The beautiful acrylic aquarium comes with a cobalt blue background that will easily catch everyone’s attention. Tank is suitable for freshwater and marine applications.
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BEST BETTA 20-GALLON LONG RIMLESS AQUARIUM
BEST BETTA 20-GALLON LONG RIMLESS AQUARIUM summaryAdvance Aqua Tanks Acrylic Rectangle Aquarium
If you love minimalist design, this aquarium for the fishes is the best choice for your living space. It has a light fixture on the top.
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BEST TETRA 20-GALLON LONG RIMLESS AQUARIUM
BEST SMALL 20-GALLON LONG RIMLESS AQUARIUM summaryLifegard Aquatics Crystal Aquarium
If you prefer glass tanks, this model is the best choice. It is a little bit smaller but it can be very functional for small fishes.
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BEST GOLDFISH 20-GALLON LONG RIMLESS AQUARIUM
BEST BIG 20-GALLON LONG RIMLESS AQUARIUM summarySTRELLALAB Landen Low Iron Aquarium
This simple tank can fit around 25 gallons which will provide more space for the fishes. The aquarium is made of sturdy glass.
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4 Top 20-gallon Long Rimless Aquariums

BEST OF BEST 20-GALLON LONG RIMLESS AQUARIUM

SeaClear Acrylic Aquarium Combo Set

Blue Background
If you’re looking for a model with simple construction but a modern design that will perfectly match the rest of your home decoration, this Seaclear aquarium for the fishes is the best choice. It comes with beautiful cobalt blue background which will add some colors to your living space.

BEST OF BEST 20-GALLON LONG RIMLESS AQUARIUM

Lightweight Aquarium
Aquarium has strong acrylic construction which has an impact-resistant feature, so you can be sure your fishes are safe inside. It is a lightweight aquarium so you can place it on every stand or commode in your home. Place it in a higher area so you can enjoy the view.

Water Application
With the measurement of 24 x 13 x 16 inches, this 20-gallon long rimless aquarium is suitable for mini and small fish breeds like betta, tetra, or goldfishes. You can use it for salt or freshwater application, depending on your preferences and the additional equipment you’ll buy.

SeaClear Acrylic Aquarium Combo Set

Light Fixture
This 20-gallon acrylic aquarium has a transparent lid to prevent jumping if you have active fishes. The top lid has holes on the back so you can easily sprinkle the food inside. For best reflection at night, this 20-gallon long rimless tank has a light fixture.

In Short:

  • Simple design for easy fitting
  • Cobalt blue background
  • Sturdy acrylic tank
  • Suitable for fresh and saltwater
  • Light fixture for the reflection

BEST BETTA 20-GALLON LONG RIMLESS AQUARIUM

Advance Aqua Tanks Acrylic Rectangle Aquarium

Minimalist Design
If you need a model that will be good for betta and other fish breeds of similar sizes, this, Advance Aqua Tanks aquarium is one of the most popular on the market. Minimalist design is created for easy fitting, so you can place it in every room in your home.

BEST BETTA 20-GALLON LONG RIMLESS AQUARIUM

Impact-resistant Tank
This 20-gallon long rimless aquarium has clear acrylic construction and it is sturdy enough to hold the weight of the water. It has an impact-resistant design and the tank will not break easily if you drop it accidentally. Lightweight construction can fit on every stand.

Clear View
Don’t worry about transparency, acrylic tanks provide a clear view from all sides. Because the tank comes in a rectangular shape you can fit in next to the wall or in every corner. It measures 24 x 13 x 16 inches and it is suitable for multiple small fish breeds.

Advance Aqua Tanks Acrylic Rectangle Aquarium

Easy Feeding
20-gallon community tank is designed for freshwater and marine application. You can add artificial or natural plants, gravel, and other decorative pieces and create a perfect natural habitat for the fishes. The light fixture on the top will reflect the whole interior. The tank has holes on the top for easy feeding.

In Short:

  • Minimalist design for every room
  • Acrylic construction with a clear view
  • Lightweight construction for safety
  • Suitable for small fish breeds
  • Easy feeding thru the top

BEST TETRA 20-GALLON LONG RIMLESS AQUARIUM

Lifegard Aquatics Crystal Aquarium

Easy-fitting Model
Even if this model is smaller than the rest of our list, it is still functional for use and the perfect choice for apartments and other smaller areas. The tank has a very minimalist design so if you prefer a very simple style, this tank will easily catch your attention.

BEST SMALL 20-GALLON LONG RIMLESS AQUARIUM

Clear View 
This sturdy aquarium is fully made of glass that is thick enough to last you for a long time. On the edges, it is strongly siliconized to prevent any leaking. The 20-gallon long rimless aquarium will provide a crystal clear view so you can enjoy it in beautiful colors.

Natural Habitat
With a measurement of 24 x 15 x 12 inches, this tetra 20-gallon aquarium can fit mini and small fish breeds like gold or clownfishes. You can use this tank for saltwater or freshwater application, depending on your preferences. Place some plants and reefs inside, so your fishes can have a natural habitat.

Lifegard Aquatics Crystal Aquarium

Quick Feeding
Because of its opened top, you can easily feed your fishes on a daily basis and clean the tank when needed. Additional equipment is not included, so you can buy it separately and pick accessories you need. The tank has an insulation pad at the bottom.

In Short:

  • Small but functional model
  • Sturdy glass construction
  • Great transparency and a clear view
  • Opened top for easy feeding
  • Insulation pad at the bottom

BEST GOLDFISH 20-GALLON LONG RIMLESS AQUARIUM

STRELLALAB Landen Low Iron Aquarium

Easy Fitting
If you’re planning to have multiple fishes, then this Streellalab aquarium is one of the best you can find on the market. It is created to easily fit in every home or apartment and we are sure everyone will notice this rimless tank in your living space.

BEST BIG 20-GALLON LONG RIMLESS AQUARIUM

Sturdy Glass
This 20-gallon long rimless aquarium has 23.62 x 15.75 x 15.75 inches and it can actually fit 25.4 gallons of water, which means your fishes will have more space for enjoyable swimming. The aquarium is made of sturdy glass construction that is thick enough to not break easily if you drop it accidentally.

Water Application
Aquarium can easily fit on every stable and sturdy stand that can hold the weight of it when it’s filled with water. It is suitable for saltwater and freshwater application and you can buy needed equipment for filtration if you want to save yourself time with cleaning.

STRELLALAB Landen Low Iron Aquarium

Quick Feeding
Because this 20-gallon glass aquarium doesn’t have a transparent lid at the top, you can easily feed your fishes every day. We recommend adding some aquatic decorations inside, like natural plants, gravel, sand, and much more, so your fishes can have a beautiful environment.

In Short:

  • Larger tank for multiple fishes
  • Sturdy glass construction for durability
  • Simple design for easy fitting
  • Easy feeding thru the opened top
  • Suitable for salt and freshwater

How To Pick The Best 20-gallon Long Rimless Aquarium?

If you still can’t decide which model has the best features, here is our guide to help you with picking. Keep on reading so you can check all the needed details and our recommendations that will help you choose the best aquarium for your living space.

Why You Need It? – Rimless aquariums usually have a very minimalist design, which can easily fit in every home or apartment. If you’re looking for a piece of decoration that will fulfill the style in your living space, you need to pick a rimless aquarium. They can easily match with all tones.

Stable And Sturdy – The most important thing when picking the tank is, of course, the quality of the tank, so you can be sure your lovely fishes are safe inside. Make sure it is made of glass or acrylic material, which is both very strong materials. Glass is much heavier than acrylic, so if you’re afraid it will break easily, we recommend an acrylic tank.

Fish Breeds – Most tanks are suitable for saltwater and freshwater application, but always check information before buying different fish breeds. We recommend smaller fishes like betta and tetras. If you want a little bit larger model from our list, you can fit multiple small and medium-sized fishes. Make sure they have enough space for swimming and don’t pick too aggressive breeds.

Additional Features – Check the dimension of the tank so you can be sure if it can fit on the stand in your home. If you want to add some color to your living space, we recommend 20-gallon long rimless aquarium with a cobalt blue background. To prevent active fishes from jumping, pick the 20-gallon aquarium with a lid. The light fixture is a must-have for best reflection at night.

To Sum Up

The best 20-gallon long rimless aquarium that we found on the market is SeaClear Acrylic Aquarium Combo Set. The sturdy acrylic tank comes with cobalt blue background and we are sure everyone will notice this beautiful tank in your living space. Check which is the best 20-gallon long planted aquarium if you want a model for corners. Also, if you need the whole setup, we picked the best 20-gallon aquarium starter kit, so you can check it.




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.