Tetra Aquarium 20 Gallon Fish Tank Kit Review

There’s no wrong time to get an aquarium, so if you’ve been wanting a fish tank for some time now, there’s no time like the present to go after it. The 20-gallon fish tank kit made by Tetra provides everything you need to get all set up with an efficient tank that you can enjoy right away. In fact, all you do is add gravel and your fish and you can be enjoying your aquarium in no time. This is a high-quality fish tank that you can use for nearly any type of fish that interests you, and its reasonable cost means that you won’t have to break the bank just to have a great aquarium in the house.

Tetra Aquarium 20 Gallon Fish Tank Kit, Includes LED Lighting and Decor

Who Is This Product for?

The Tetra 20-gallon fish aquarium can be set up however you like, making it perfect both for people who have had fish in their homes for many years or those who are just beginning this adventure. It is easy to set up and looks great when you’re done, and the easy-to-understand instructions help make sure that it looks just the way it’s supposed to look in the end. It’s also an aquarium for people who care about the health and well-being of their fish because it has certain features that reduce the fish’s stress, making it more likely that you’ll be able to keep your fish for a very long time.

What’s Included?

This Tetra aquarium 20-gallon fish tank kit review wouldn’t be complete without telling you what comes with the tank. Indeed, with the exception of the gravel and the fish themselves, you’ll have everything you need to start enjoying your fish immediately. This includes:

  • 20-gallon glass aquarium, size: 24.2” L x 12.4” W x 16.7” H
  • LED hood
  • Mini UL heater
  • Whisper 20 filter
  • Artificial boxwood plant mat
  • Artificial plants (4)

The filter is whisper quiet and the artificial plants give the fish a very natural-feeling environment, making this the perfect aquarium regardless of what type of fish you put into it.

Overview of Features

This rectangle-shaped fish tank offers features such as a hood that allows for the perfect daytime effect, making it perfect for all types of fish. The filter makes sure that you get consistent, dependable water flow and the artificial plants give the fish places to hide, which greatly reduces fish stress. In addition, it offers scratch-resistant glass and a heavy-duty design that means that you can count on it to work for a very long time. You also get a few extras with your kit, such as an instruction booklet that tells you step by step how to get it all set up easily and quickly.

How to Use it?

To use the tank, you’ll want to start by rinsing each piece off with water so that it’s clean, using no soap or other chemicals. Place the gravel in there first and make it thicker on one side for some balance. Follow the directions regarding the water you place in the tank. When you’re ready, simply plug it in and turn it on. You can add other items as well, including more statues, fixtures, and even a background photo if you like. You’ll also want to start by placing the tank on a flat, even surface and on some type of stand that is made to handle this much weight. You should be able to set it up quickly so that you can enjoy it for many years afterwards.


Some of the many advantages that this aquarium offers include:

  • Large 20-gallon capacity
  • Most of what you need to use it immediately
  • High-quality tank made with scratch-resistant glass
  • Super-quiet filter
  • Very reasonable price at around $110

Indeed, this heavy-duty tank is one that you’ll be able to use for many years to come and it provides you with an aquarium that is both beautiful and functional. It is also made in the USA and comes with a lifetime warranty; you can’t beat this feature alone.


Regardless of how great a product is, there will always be some customers who are unhappy with it. Below are a few comments that customers have made after purchasing the Tetra 20-gallon fish tank:

  • The heater is not adjustable
  • It doesn’t come with an aerator
  • The lid is flimsy
  • The filter is louder than expected
  • The LED lights didn’t last long

All of this being said, it’s good to keep in mind the lifetime warranty. Tetra is a reputable company and you should be able to contact them if something goes wrong so they can make things right.


Regardless of the few complaints about the Tetra aquarium, this is a sturdy and dependable fish tank that you should be able to enjoy for a very long time. The fact that it is made for both beginners and more experienced fish lovers tells you something about it. This alone should give you confidence when purchasing it. With decorative pieces that are built to last and excellent customer service to help you when you have any questions, Tetra has made a great fish tank that all people will love and appreciate.

And when you consider how little you pay for the tank compared to what you get in return, it’s easy to understand that this is the perfect aquarium for people on a budget. Even if you’ve never cared for fish before, this is a solid and reliable fish tank that you will never regret purchasing.

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