10 Best 5 Gallon Fish Tanks (2021 Ultimate Reviews & Guide)

Are you a beginner aquarist or just have kids who want to keep fish? Then you will need the best 5-gallon fish tank to start out. This size of the fish tank is the most popular and commonly used by aquarium hobbyists and beginners in general. With them, you will be able to provide a safe home for your fishes and they will offer you great satisfaction.

However, when it comes to selecting the best, it will become tiring because of the several options on the market. In this article, I am going to review some of the top 10 out there and by the end, you will surely be able to make a decision. I will also throw in a buyer’s guide with key factors you must consider before you make a purchase. Read on to find out more about these fish tanks and what they have to offer.

Marineland 5-gallon portrait fish tank is made of glass with rounded corners to provide you with multiple viewing angles. The hinged lid of this tank is located at the top to give you easy access to the interior. Furthermore, it has a three-stage hidden filtration system that will not get in the way of your viewing.

What I like

The three-stage filtration strategically located at the back of the filtration panel to remove impurities as well as toxins without interfering in your view. The LEDs which eliminate the tank to provide the fish with natural light. It can also be easily accessed and it has a unique look.

What I don’t like

The fish tank is made of glass which is not very durable.

The LED light bar on this tank is conveniently built on the canopy to provide a natural replica of daylight as well as Moonlight. The white LEDs as the sunlight while the blue LEDs act as the Moonlight. The kit also comes included with most important fish keeping accessories. These include a care guide, fish food, nutrafin cycle, a fishnet, a thermometer and a water conditioner.

  • It is affordable and beginner-friendly
  • Features a 3-stage filtration
  • Comes with easy access
  • Included with fishkeeping equipment
  • Effective LED lighting bar
  • It is not very durable

Panaview is the ideal 5-gallon aquarium for anyone new to fish keeping. The tank is easy to maintain thanks to the unique hood which you simply tilt to give you access to the interior. It is designed with impact-resistant plastic that also has a clear View which almost looks like glass.

What I like

The tilting Hood offers access and Maintenance. It is made of break and impact-resistant plastic which is also leak-proof. On top of that, it is equipped with multiple LED colours with options to select those suitable for your fish anytime.

What I don’t like

The filter on this unit is weak and also makes noises after some time. Another thing is the hood will not stay up on its own you’ll always have to keep holding it as you access the tank.

Need something unique? Then how about the multiple LED colours on this fish tank. You can get to choose the colours according to the time of day or night. The one-piece construction on this aquarium is specially made to give the tank more strength and also increase its durability.

  • It is affordable
  • Multiple LED colours
  • Break and impact-resistant plastic
  • Weak filter

Marina LED aquarium kit has everything a novice fish hobbyist needs to start out in the fish keeping world. It is among my favourite starter kids as it comes included with some fish food, water conditioner, biological agent, a fishnet as well as a care guide.

What I like

The clip on the filter will not take up much space for the fish. It is a great starter kit which comes included with all the necessities you need to start. The LED lighting provides light that is needed for fish.

What I don’t like

Much as it illuminates light to replicate sunlight, it does not have the option of nighttime light.

  • It is a good starter kit
  • Effective filter with quick cartridge change
  • Durable glass build
  • Doesn't offer nighttime light

If you are looking for a 5-gallon fish tank that will look incredible in your home then you need to try this one. This Fluval 5 gallon aquarium comes at an affordable price but does not compromise on its quality. It has an incredible size which will not take up a lot of space making it ideal for any home size. It is also easy to maintain and set up.

What I like

The tank is affordable and it comes included with everything you will need to get started. Has a nice design with an LED light to illuminate day and night light. The filtration system is powerful and if you want to keep saltwater fish then you have got the right fish tank.

What I don’t like

The only downside I saw was that the power pump head wasn’t as powerful.

  • Affordable
  • Provides day and night light
  • Suitable for beginners
  • Features a powerful filtration system
  • Weak pump overhead

Another great aquarium from Koller products. This unit just like the previous one is made of impact-resistant crystal clear plastic. It has got a unique design which makes it suitable for children. It is easy to maintain, set up and accessing the interior doesn’t require much. You will be able to lower your stress levels by Simply looking at this aquarium.

What I like

The plastic material used is impact-resistant and won’t break to cause leaks. It has a unique look with a crystal clear view. It’s powerful internal filter quickly clean the water from any impurities leaving it crystal clear.

What I don’t like

Easily gets cracked during shipping. In fact, most customers had reported that it arrived scuffed and it was because of poor packaging.

  • Multi LED colours
  • It is affordable
  • Easy to set up and maintain
  • Ideal for children
  • Powerful internal filter
  • It is not very durable

Are you looking for a great starter acrylic fish tank? Well, you might find this a good choice. The acrylic material allows it to have a unique shape and fair durability. It also comes included with everything you will need to get started. The aquarium has a 16 bulb LED light to easily light up the tank to provide daytime shine.

What I like

The curved front of this aquarium gives it a unique look you won’t find from other glass fish tanks. The acrylic material makes it lightweight, durable and ideal fit anywhere. Also, it comes included with everything a beginner needs to start.

What I don’t like

It doesn’t have variable light modes so you’ll get the same constant light during the day and at night.

  • Has a unique looking design
  • 16 bulb LED lighting system
  • Perfect for beginners
  • Easy to maintain and set up
  • Includes starting accessories
  • It doesn't have variable light modes

Are you looking for a stylish 5-gallon fish tank? You love the Fluval spec V aquarium. It is made from glass but also features an aluminium trim that contributes to its stylish modern look. It has a 37 LED lighting system located at the top to provide light for your aquarium habitats. It can also allow the growth of plants that require low-to-medium lighting.

What I like

The LED lighting system which can support low to medium light-demanding live plants. The aluminium trim material which gives it a stylish modern look. Also, it is equipped with a hidden compartment to keep the filter, wires as well as the heater.

What I don’t like

The pump is adjustable but tends to be too strong for certain types of fish like Betta fish.

  • LED lighting system supports aquatic plants
  • Advanced internal filter
  • Hidden compartment
  • Made of good durable material
  • It has got a powerful air pump

Penn Plax curved corner glass aquarium is a great contemporary glass fish tank with a unique design. It is bent and has a frameless construction made of high-quality clarity glass. It is also seamless at the front to provide you with an unobstructed view at all sides.

What I like

The powerful LED light which has a Mount to avoid blocking your view from the top. Also, the hinged lid lets you access the tank easily. High-quality glass to provide you with a durable fish tank. It is also ideal for different types of fish.

What I don’t like

Its frameless design leaves sharp edges that can hurt you as you clean it. This makes the fish tank not ideal for children. Also, the pump is a little strong for Betta fish.

  • Frameless Neo design
  • High-quality durable glass
  • It has got a powerful mountable LED light
  • Internal three-stage filtration system
  • The frameless design leaves sharp edges
  • The pump is too strong for some fish

Start your fish keeping hobby with an easy to maintain and set up 5-gallon fish tank. The Glofish aquarium is made of clear plastic with a curved front as well as a similar view. It comes included with what you will need to get started such as filter cartridges, fish food, water conditioner among others.

What I like

Blue LED lights which provide a unique look for the fish. You’ll also get everything you need to start. The unique filtration system which catches dirt and debris before it enters the water. The feeding hole will also allow you to feed the fish without opening up the tank.

What I don’t like

The unit has blue LED lights which won’t help to support live plants in your tank. Also, there won’t be a night-time light option.

  • Made of acrylic material which is durable
  • Has a unique design
  • Has a 3-stage filtration system
  • Small and lightweight to fit anywhere
  • Perfect gift for kids
  • You won't get a nighttime light option

Fluval Edge is among the most elegant looking fish tanks you will find on the market. Its modern design will make a great addition to your elegant home. It is easy to set up, making it a good starter aquarium. It is also affordable and a great value for your money. This fish tank has a black column where all the wires can be kept to give you an unobstructed view at all times.

What I like

The 3D cube shape which offers an attractive tank compared to others. Also, the Sealed cover that minimises evaporation and lets you fill the tank to capacity. It is affordable and has a modern design. On top of that, it has got a good inbox filter to keep the water clear and clean.

What I don’t like

The only downside I saw in this unit was the difficulty when cleaning. A beginner will have a hard time at the start but will eventually get used to it.

  • An elegant modern design
  • Features great lighting options
  • It is a great value for money
  • Can fill the tank to capacity
  • Hard to clean

Buying Guide

When you go out to buy a 5-gallon fish tank you should have enough information on them so that you select the right one. These tanks come with different features which make some standout from others. When buying a 5-gallon fish tank there are a few important things you should look out for. Let’s take a look at them.


The cost of any product is the major deciding factor when you go to buy it. I suggest you set your budget and you know what you expect from the tank. For example, if you only need the fish tank to gain experience in fish keeping, then I would recommend you go for one which comes at an affordable price. On the other hand, if you are looking for a fish tank that will serve you for long and have no plans of replacing it soon, then go for one that is of good quality but also fits your budget.

Acrylic or Glass

One of the major differences between fish tanks is the material used on the construction. Fish tanks are mainly made of acrylic or glass material. The acrylic fish tanks are usually crystal clear, lighter than glass and come moulded in beautiful shapes.

The glass fish tanks, on the other hand, are more scratch-resistant, cheaper, don’t absorb chemicals and will not yellow in the long run. These two types of fish tanks also have their downsides. It is best to select one that will fit your budget and be more appealing to you.


5-gallon fish tanks are usually used by beginners. With that said, you must consider one which is not too complex when it comes to set up and Maintenance. You will need an aquarium which is easy to set up and doesn’t need an expert to do so. You should also consider one which is easy to maintain to add on its longevity. An aquarium which is hard to maintain can be damaged easily when cleaning it.

Extra features

Consider a fish tank which comes with some extra features. These extra features will ensure that your fish get a natural replica of the ocean. Some of these extra features include LED lights, LED hoods, filter covers among others.

Water classification

Fish tanks come classified according to two kinds of water. Freshwater and saltwater tanks. Freshwater tanks are usually easy to maintain and they are ideal for 5 gallons. Saltwater tanks, on the other hand, are complex for 5 gallons. They tend to be hard to maintain. When choosing a 5-gallon fish tank you will have to know the type of fish that you are going to be keeping. This way you will be able to know the water type that is suitable for them. I suggest you go for a freshwater tank for 5 gallons.


Q: Can I keep goldfish in a 5-gallon tank?

A: No, you cannot. No matter the size, goldfish cannot be kept in a 5-gallon tank. The minimum would at least be 20-gallon tank for a fancy and at least a 75-gallon tank for a single comet. Remember that a fish will not grow only to the size of the aquarium it is in.

Q: Will I need an air pump for my 5-gallon fish tank?

A: This will entirely depend on the type of fish that you are going to keep and if you already have a hanging filter. First of all, you need to ensure that all the type of fish that you won’t are able to live in a 5-gallon fish tank. Once you determine that then find out if they will need an air pump as well as a hanging filter. While some fish will be able to do without an air pump if there is a hanging filter, others will not.

Q. What is the use of an air pump in a fish tank?

A: Air pumps in fish tanks are what add the oxygen into the tank by simply increasing the agitation surface that your fish have more oxygen to breathe.

Q: How many tetras can I put in my 5-gallon fish tank?

A: A five-gallon fish tank will only allow three tetras. The number of tetra school is 6. In case you have a school you will need a bigger fish tank to fit all of them.


I hope the reviews above have been helpful and you can now choose the best 5-gallon fish tank. Much as there are lots more options on the market this top 10 have got some unique features and they are among the most popular and widely used fish tanks. I guarantee they will improve your fish keeping experience as time goes on.

Remember to keep in mind the key factors I mentioned before you buy one. This way you will be able to get a fish tank that will be reliable and ideal for the type of fish you are looking to keep. Thanks for sticking around and I wish you all the best in your search.

Leave a Comment