Best 5 Gallon Fish Tank – 5 Reviews, Tests, Guide, FAQs Upd.

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You’ll agree with us when we say that a 5 gallon fish tank can really add a stylish look to your home but it can be very difficult to select and buy. 

This is why we’ve tested and used all the popular 5 gallon fish tanks out there to bring you this list. 

In this post, we’ll be talking about what you should look out for when buying a 5 gallon fish tank and what are some great options you could choose from.

Top Pick

This sleek-looking aquarium can add a whole new dimension of aesthetics to your room. It features a sliding canopy for easy feeding.

Runner Up

If you’re seeking a modern and minimal-looking fish tank, you’ve just found it. It has an aluminum-laced body which makes it very durable.

Also Great

This fish tank comes pre-assembled so it’s very easy to get started with it. It features energy-efficient LEDs which give your fish a dazzling shimmer.

After testing countless 5 gallon fish tanks for extended periods of time, we’ve concluded that these three are the best ones. 

Now, let’s get into the reviews for the best five 5 gallon fish tanks. 

Best 5 Gallon Fish Tank - Best 5 Reviews

1. Overall Best 5 Gallon Fish Tank - MarineLand Portrait Glass LED Aquarium Kit Review

This fish tank was very easy to set up. It came with clear instructions but we found that we didn’t even need them since the assembly of the fish tank was so intuitive and easy. 

It comes with built-in LED lights that mimic natural sunlight as well as moonlight for your fish to give them as close to a natural experience as possible.

The safety lid is also a great feature as it prevents any nosy pets such as cats from poking into it. It’s also easily removable for you so you can easily feed your fish or clean the tank whenever needed.

Features of MarineLand Portrait Glass LED Aquarium Kit – Best 5 Gallon Fish Tank

  1. Built-in filter with adjustable flow rate
  2. Aluminum base
  3. Blue and White LEDs
  4. Rite-Size Z filter cartridge
  5. Rounded Corner design
  • Designed to be tall so it takes up less space than normally designed long tanks
  • Safe lid to protect your fish from other pets such as cats
  • Filter is extremely silent
  • Customizable LED lights
  • Easy to maintain
  • Filter creates a strong current which may disturb smaller fish

If you’re looking for a premium quality, durable fish tank that takes up very little space, this product is ideal for you. Its built-in filter is hidden and the LED lights are programmable to suit your needs.

2. Best Aluminum-trimmed 5 Gallon Fish Tank - Fluval Spec V Aquarium Kit Review

The Fluval Spec V Aquarium Kit is perfect if you’re looking to create a community tank within your home.

Its Aluminium lacing gives it a very premium and sturdy appearance. 

All of the equipment that it comes with (Filter and circulation pump) is completely hidden in a separate compartment so you don’t have to worry about hiding it with plants or ornaments, etc. 

We were most impressed by the fact that after we started using this product, we noticed a significant drop in our electricity bill as it utilised the power it was provided very efficiently.

Features of Fluval Spec V Aquarium Kit

  1. Aluminum borders
  2. Safe, low-voltage transformer included
  3. 37 built-in LED lights
  4. Filter flow pump with adjustable rate
  5. Dimensions: 17.2 by 10.6 by 6.3 inches
  • Easy to remove lid
  • Filter and other built-in equipment is completely hidden
  • Low power consumption
  • Filter and air pump are easy to clean
  • Quiet filter
  • Expensive

If you want a sleek-looking fish tank that’s also very sturdy, this product is the one for you. All of its built-in equipment is completely hidden from sight and is extremely effective.

3. Best Impact-resistant 5 Gallon Fish Tank - Koller Products Panaview 5-Gallon Aquarium Kit Review

This little aquarium kit packs a big punch in many areas that are sure to impress you. 

It features a lighting system that provides a myriad of different color options to illuminate your fish including daylight white, blue, green, amber, aqua, purple or red. 

The internal power filter built into it works very quietly to the point where you’d think it’s defective but sure enough, it does work perfectly and is super effective.

The body is crack-resistant so you don’t have to worry about leaks or cracking over time.

Features of Koller Products Panaview 5-Gallon Aquarium Kit

  1. Built-in LED lights
  2. Built-in internal power filter
  3. Crack-resistant hard plastic body
  4. Weight: 4.8 pounds
  5. Dimensions: 14.2 by 11.5 by 10 inches
  • Affordable
  • Easy to set up
  • Easy to clean
  • Sturdy
  • Filter works very quietly
  • Body is made of plastic which may yellow over time

If you’re looking for an affordable option for your fish that still doesn’t compromise on quality, this is the product you’re looking for. It’s built to last and the lights and filter built into it work supremely well.

4. Best 5 Gallon Fish Tanks with Energy-Efficient LEDs - Marineland Nook Aquarium Kit Review

The best feature that we found of this tank was its wide, curved front glass. It gives the illusion that the tank is much larger than it is and your fish also seem much bigger than they are. This makes for an enjoyable viewing of your fish and you can observe your fish in much greater detail and even monitor them to make sure they’re not ill. 

And just when you thought your viewing experience couldn’t get any better, just wait till you turn on its built-in LED lights. They add a whole new level of beauty to the fish inside the tank.

Features of Marineland Nook Aquarium Kit

  1. Curved front glass for unobstructed viewing
  2. Built-in filter
  3. Built-in, energy-efficient LED lighting
  4. Adjustable flow pump
  5. Dimensions: 16.6 by 11.2 by 13.2 inches
  • Equipment is completely hidden
  • Small in size
  • Easy to clean
  • Easy to install
  • Effective and quiet filtration system
  • Obtuse shape makes it hard to place certain plants and fish in it

If you don’t have a lot of time on your hands and want a fish tank that’s easy to maintain, this is the one for you. Its wide curved front coupled with its powerful filter make it a great purchase for any and all fish-keepers.

5. Best Customizable 5 Gallon Fish Tank - Carolina Biological Supply Company Aquarium Tank Review

This is a great option for fish-keepers that want more control and customizability in their fish tank. 

It’s a no nonsense product that comes simply as an empty 5 gallon aquarium to which you can start adding separate equipment as you need so that you are eventually able to create a fish tank that is perfectly suited to your and your fish’s needs. 

Its build quality also seems uncompromising as the glass is thick and sturdy and is held together by silicone rubber which will prevent any kind of leakage down the line.

Features of Carolina Biological Supply Company Aquarium Tank

  1. Glass welded together with Silicone Rubber
  2. Non-reactive with saltwater
  3. Dimensions: 16 by 10 by 8 inches
  4. Made from triple-strength glass
  5. Easy to set up
  • Comes with a lifetime warranty
  • Highly modifiable
  • Leak-resistant
  • Long-lasting
  • Budget-friendly 
  • Not suitable for beginners
  • Slightly heavy

If you’re looking for a barebones tank that is a blank canvas for you to add separate equipment to, this product is perfect for you. Its adaptable design makes it great for fish-keepers who are looking to experiment with different equipment.

best 5 gallon fish tank


Buyers’ Guide

What do I look for when buying a 5 gallon fish tank? 

There are several factors you can keep in mind which will help you make an informed decision when buying a 5 gallon fish tank. Since we’re talking exclusively about 5 gallon fish tanks in this post, the size of the fish tank is not something you’ll have to consider or think about. The remaining factors are: 

  • Durability 

When you’re buying a fish tank, you should observe it thoroughly and judge the material its body is made out of in order to ensure it will last you a long time. 

You don’t want to keep investing in a new fish tank every other year so make sure you get one that’s built to last. You need to ensure that the tank you’re getting will be able to withstand the pressure that will be exerted by the water poured into it. If it’s made from a flimsy, frail glass or acrylic material, it could crack and lead to leaks.

  • How easy is it to Set Up

If you’re an amateur hobbyist or are looking to get your children into the hobby of fish-keeping, we strongly recommend you get a fish tank that is easy and even fun to set up. If you get a fish tank that’s too complex in its installation process, your children might lose interest midway. 

  • How Easy is it to Maintain

If you’re a busy person that doesn’t have a lot of time to devote to the maintenance of your fish tank, you might want to get one that doesn’t require a lot of it. 

How do I set up a 5 gallon fish tank? 

First off, you need to choose the location of the fish tank. A 5 Gallon fish tank is small in size and not that heavy so you can get away with not investing in an aquarium stand and just having it on a desk or tabletop but make sure that the base is sturdy and will be able to support the weight of the tank. 

Add the gravel to your fish tank, mount and connect all the electrical equipment such as filters, heaters and air pumps. Add the water and add a dechlorinating and conditioning agent to it. 

Most people have the hang of it up to this point but what a lot of people don’t do is cycle their fish tank. 

Cycling refers to the process of growing beneficial nitrifying bacteria inside your fish tank which aid in the process of biological filtration by neutralizing dangerous toxins. This usually takes about 4-6 weeks. 

Once this is done, you can add fish to your tank. Keep an eye on the water conditions such as pH, temperature, etc for the next few hours to make sure they are stable. 

Congratulate yourself on a job well done. You’ve just successfully set up your 5 gallon fish tank.

What are the different types of 5 gallon fish tanks? 

5 Gallon fish tanks are a small piece of equipment that can be used in a number of different ways. The different types of 5 gallon fish tanks are: 

  • Breeding Tank 

A 5 gallon fish tank is the perfect size that can be used as a breeding tank for different species of fish. Some fish are timid and will only mate privately and it’s a great idea to invest in a 5 gallon fish tank that will allow your fish to breed away from the distractions of other fish.

  • Species Tank 

There are many exotic species of fish out there that require a specific set of conditions in order to grow and thrive. A 5 gallon fish tank is a small environment that’s easily controllable and can work perfectly for you. You can easily control the conditions of a 5 gallon fish tank so they are ideal for whatever species of fish you choose to host in that tank.

What are some benefits of a 5 gallon fish tank over other tanks? 

A 5 gallon fish tank has a couple of advantages over other tanks that may be larger than it. 

Firstly, since a 5 gallon fish tank doesn’t have a large footprint and doesn’t weigh too much, you can easily place it on your desktop or a table or countertop and you’ll see that its attractive colors and appearance will definitely tie your room together. This also means that you won’t have to invest in a separate aquarium stand. 

Having a small 5 gallon fish tank will also mean that you won’t have to invest a lot of time cleaning it. Larger aquariums demand a lot of time and effort to be cleaned but this is not the case when it comes to a 5 gallon fish tank.

How do I perform a weekly water change in my 5 gallon fish tank? 

You can perform a weekly water change by replacing 10-15% of the water in your aquarium. 

Firstly, siphon out the water into a bucket. Make sure there’s ample water in your fish tank for your fish to swim comfortably. 

Add tap water to a clean bucket and add your dechlorinating and water conditioning agent to it. Mix it up well and let it sit for a few hours. 

Add the water gently into your aquarium so as not to disturb your fish. 

Frequently Asked Questions

What are some suitable dimensions for a 5 gallon fish tank?

Most 5 gallon fish tanks are more horizontal than they are vertical. Some conventional dimensions of a fish tank are a length of about 18 inches with a width of 10 inches and a height of 8 inches. 

While this is the convention, you definitely get a lot of products that push boundaries when it comes to the dimensions of a 5 gallon fish tank. For example, the product that’s number one on our list has a shape that defies all conventions when it comes to the shape of fish tanks. 

What other equipment do I need for my 5 gallon fish tank? 

A 5 gallon fish tank usually comes in the form of aquarium kits. While these kits are marketed in the fashion so that they claim to have “everything you need to get started”, you may want to take their claims with a grain of salt. 

Here is a comprehensive list of all the equipment you need to successfully run an aquarium. If your 5 gallon fish tank doesn’t have one of these features, you might want to invest in one separately: 

  • Lighting
  • Filter
  • Heater
  • Air pump 
  • Dechlorinating agent
  • Water conditioning agent 
  • Water testing kit 
  • Net for removing large waste particles

What’s a suitable number of fish I should have in my 5 gallon fish tank? 

The golden rule of thumb that is normally used in the aquarium world is that you should have 1 inch of fish for every 1 gallon of water. Seeing as how we’re talking about 5 gallon fish tanks, you should not have more than a total of fish that make a combined length longer than 5 inches. 

It is important to note that when we’re talking about the length of the fish, we mean the maximum lengths that they will grow up to be. Do not judge the length of your fish by how big they are when you buy them. Properly research to find out how big they can get and get your number of fish accordingly.

What kinds of fish should I keep in my 5 gallon fish tank? 

Small to medium-sized fish when they are full-grown are a great option to have in your 5 gallon fish tank. If you want to have an individual fish in your 5 gallon fish tank, a Betta is a great fish to have as they are energetic and have beautiful, long, vibrant tails that are a treat to watch. 

Other fish you can have in your fish tank include Clownfish, Puffer fish, Gourami, Crayfish, Livebearers, Paradise fish, Killifish, Loaches, etc.

What are some of the most trusted aquarium brands when it comes to 5 gallon fish tanks? 

There are all kinds of different brands cashing in on the rising popularity of fish-keeping as a hobby but the most trusted brands which you should buy from are listed below. 

  • MarineLand
  • Fluval
  • Marina
  • Koller Products
  • Penn Plax
  • GloFish
  • Tetra

We’re not saying other brands can’t be good but these are some whose products we test regularly and they have been consistent in terms of quality and effectiveness.

How often should I perform a water change in my 5 gallon fish tank?

A 5 gallon fish tank is a relatively smaller aquarium when it comes to aquariums that people have in their homes and considering this fact, a 5 gallon fish tank actually becomes dirty a lot quicker than larger aquariums. 

This makes sense when you think about it because since it is hosting a smaller body of water, when your fish excrete waste products into it, it will become more concentrated with waste and debris a lot quicker than a larger aquarium. 

Thus, we suggest that you perform small water changes after every 3-4 days combined with a slightly larger water change each week. Finally, you should perform a 25-50% water change every month that should be accompanied by a deep cleaning process as well. 

Final Verdict

5 gallon fish tanks are a great thing to have in your room that can really elevate its appearance and appeal. It’s important to get a product that will not lose its beauty over time and will be easy to maintain. 

After months of experimenting, we have to give the crown to the MarineLand Portrait Glass LED Aquarium Kit. Its unique design takes up a lot less space compared to its competitors, it’s easy to clean and it is extremely durable. 

This brings us to the conclusions of our post for the best 5 gallon fish tanks. 

Let us know what 5 gallon fish tank you have in your room.

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