• 10 Best Fish Tanks UK 2022 1
  • 10 Best Fish Tanks UK 2022 2
  • 10 Best Fish Tanks UK 2022 3
  • 10 Best Fish Tanks UK 2022 4
  • 10 Best Fish Tanks UK 2022 5

10 Best Fish Tanks UK 2022

The first thing to do after buying a pet fish is to look for a good fish tank or aquarium for sale, either with a stand or for your coffee table or office. You'll also need a filter, a light, and a thermometer. Not to forget aquascaping and ornaments! Maintaining a clean tank to avoid green or brown algae can be daunting to beginners, which is why you should start off with the right tank to get you on your feet (or fins!). 

Before you pick, you should know what to look for to provide the best living conditions for your fish. Whether that's a 5 litre or a 20-litre capacity, a bubble machine or an underwater cleaning filter, our guide will help you choose the ideal home. And, of course, the trusty tanks in our top 10 list include options for goldfish and tropical betta or guppy fish alike and are all available on Amazon and Argos.

  • Last updated: 09-04-2022
Table of Contents

Compare the Best Fish Tanks

For those after a quick look, here is our Top 5:

  1. Superfish - Qubiq Aquarium for £82.99
  2. MonsterShop - Large Fish Tank Aquarium for £749.99
  3. Fluval - Spec Aquarium Kit for £89.00
  4. Tetra - Starter Kit Tank for £100.00
  5. Marina - 360 Aquarium for £51.26

For a more in-depth look at the comprehensive top 10 selection, make sure to read on to learn more about the different types of fish tanks available and understand how our ranking was determined.

This article's chosen EC site price listings are reflective of its publishing date.
Superfish Qubiq Aquarium 1


MonsterShop Large Fish Tank Aquarium  1


Fluval  Spec Aquarium Kit 1


Tetra Starter Kit Tank 1


Marina 360 Aquarium 1


ZWF Multifunctional Living Room Creative Aquarium  1


All Pond Solutions Nano Aquarium Curve 1

All Pond Solutions

Diversa  Aquarium Fish Tank 1


Sotoboo  Wall Hanging Fish Tank 1


Ferplast Plastic Fish Aquarium 1



Qubiq Aquarium

Large Fish Tank Aquarium

Spec Aquarium Kit

Starter Kit Tank

360 Aquarium

Multifunctional Living Room Creative Aquarium

Nano Aquarium Curve

Aquarium Fish Tank

Wall Hanging Fish Tank

Plastic Fish Aquarium


30-Litre Tank With a Filter and LED Lights, Perfect for First-Time Fish Owners

A Huge 300L Fish Tank With Practical Extras Including Gravel, Ornaments and Plants

A Modern and Efficient Tank With a Smart Design and a 3-Stage Filter

A Perfect Starter Kit for Families Featuring an 80-Litre Tank, LED Lights and a Heater

A Cylindrical, Stylish Fish Tank With Multicoloured Lights and a Handy Remote Control

The Perfect Home Complete With a Roof, L-Shaped Sofa and TV Cabinet

A Sturdy, Round Fish Tank That Holds 14 Litres, Ideal for Your Home or Office

Simple, Spacious and Sleek Aquarium With Strong Silicone Joints for Extra Security

A Decorative Hanging Fish Tank With a Wide Open Gap, Ideal for One or Two Fish

A Basic, Plastic Fish Tank for Children That Holds 6 Litres of Water

Capacity30 litres300 litres19 litres80 litres10 litres5 litres14 litres160 litres5 litres6 litres
AccessoriesLight, filterLight, filter, stand, air pump, heater, ornamentsLight, filter, pumpLight, filter, food, heater, conditionerMulti-colour LED lighting, decorative rocks, remote control, filter, air pumpOrnamentsLight, decorative tree, pebblesLight- -
Shape CubeRectangular RectangularRectangular CylinderNovelty houseCircularRectangularBowlRectangular
Dimensions32 x 32 cm 70 x 120 x 39 cm52.1 x 19.1 cm53.5 x 62.5 x 34 cm25.4cm x 25.4cm36 x 27 x 39cm46 x 27 cm100 x 40 x 40 cm29.5 x 14 x 26 cm30 x 20 x 20.3 cm

How to Choose a Fish Tank in the UK

Key Points to Consider

  1. Choose a Tank of a Minimum of 10 Litres per 5 Fish
  2. Consider the Maintenance and Durability of Glass, Acrylic and Plastic
  3. Look for Extra Accessories Such as Cleaners, Food and Gravel
  4. Chose a Style and Shape of Tank That Fits the Decor of Your Home

1. Ensure the Tank Is Big Enough for the Type and Number of Fish: You’ll Need a Minimum of 10 Litres for 5 Fish

1. Ensure the Tank Is Big Enough for the Type and Number of Fish: You’ll Need a Minimum of 10 Litres for 5 Fish

To make sure that your fish are happy and have room to grow, you need to know which capacity of tank to buy. Tanks are measured in litres, which range between 5 and 300 litres. You can get smaller, but we'd recommend starting with 5 litres for easier maintenance, and a better overall environment. 

It's suggested to keep a maximum of five fish in a 10-litre tank, so use that as a helpful perspective as to how many you could fit in your desired tank. This is important if you want to keep your fish healthy and happy. 

That said, betta fish actually thrive in small tanks as opposed to great big ones, so speak to the pet shop or seller for advice on the breed you want to keep. Plus, don't forget that fish grow differently depending on the size of the tank, as they produce a growth hormone that can be diluted by large quantities of water. 

Make sure you have the right fish food for the species to feed them too!

2. Choose Between Glass, Acrylic or Plastic Depending on Your Preferred Level of Maintenance and Durability

2. Choose Between Glass, Acrylic or Plastic Depending on Your Preferred Level of Maintenance and Durability

It's important that you find the right material for your tank, and you'll typically have a choice of glass, acrylic, or plastic. Glass is the most frequently used, and makes for a scratch-resistant tank that's easy to care for and keeps its clarity over years of usage.  

Acrylic, on the other hand, can yellow with age, although it does have more flexibility and can be made into a variety of different shapes. Plastic tanks are good for children who need a starter tank, or perhaps if you need a place to put your fish while you clean the main tank. All in all, glass tanks are the most popular and reliable option, but we've included a bit of everything on our list so you can decide for yourself!

3. Look Out for Tanks That Include Accessories Such as Cleaners, Food and Gravel to Save Money

3. Look Out for Tanks That Include Accessories Such as Cleaners, Food and Gravel to Save Money

If you were to go to Amazon and buy everything you need for your tank separately, you could find yourself shocked at the total cost! That's why we'd recommend considering a bundle of care items along with your tank. Most commonly this will be a filter, light, and thermometer, but could also offer cleaners, food, backdrop stickers, gravel, sand, and decorations. Phew!

This is beneficial for a number of reasons other than the fact that it saves money. For instance, it also makes things easier for first-time fish owners, and means you don't have to source different products that suit the size of your tank – everything is already fitted for you. 

Create a diverse and fun environment for your new pet(s) with our top pick of fish tank ornaments!

4. Pick a Style and Shape of Tank That Fits Nicely With the Aesthetics of Your Home and Its Intended Location

4. Pick a Style and Shape of Tank That Fits Nicely With the Aesthetics of Your Home and Its Intended Location

Traditionally, the round goldfish bowl was a classic design and frequently bought for children to keep one or two goldfish in. However, more recently, there is a plethora of box tank designs that appeal more to the eye. In addition, the flat sides are actually easier to clean in comparison to rounder edges. 

These new box tanks can be square, tall, and slim, or long and wide, to suit your preferences for a home aquarium aesthetic as you wish. We recommend a box tank to rest on a stand, or if you're buying a tabletop tank, opt for a round one or a taller minimalistic style. It's also worth noting the dimensions of the fish tank so you know what surface size it will need to sit on, or where you can place it in your home. 

Ensure that your tank has good water oxygenation and improved filtration with an air stone.

10 Best Fish Tanks in the UK

This ranking has been compiled by the writing team at mybest UK via careful evaluation of the points made in the buying guide and thorough research of each product and comparing multiple verified customer reviews across the EC sites used.


SuperfishQubiq Aquarium


Capacity30 litres
AccessoriesLight, filter
Shape Cube
Dimensions32 x 32 cm

MonsterShopLarge Fish Tank Aquarium


Capacity300 litres
AccessoriesLight, filter, stand, air pump, heater, ornaments
Shape Rectangular
Dimensions70 x 120 x 39 cm

Fluval Spec Aquarium Kit


Capacity19 litres
AccessoriesLight, filter, pump
Shape Rectangular
Dimensions52.1 x 19.1 cm

TetraStarter Kit Tank



Capacity80 litres
AccessoriesLight, filter, food, heater, conditioner
Shape Rectangular
Dimensions53.5 x 62.5 x 34 cm

Marina360 Aquarium


Capacity10 litres
AccessoriesMulti-colour LED lighting, decorative rocks, remote control, filter, air pump
Shape Cylinder
Dimensions25.4cm x 25.4cm

ZWFMultifunctional Living Room Creative Aquarium


Capacity5 litres
Shape Novelty house
Dimensions36 x 27 x 39cm

All Pond SolutionsNano Aquarium Curve


Capacity14 litres
AccessoriesLight, decorative tree, pebbles
Shape Circular
Dimensions46 x 27 cm

Diversa Aquarium Fish Tank


Capacity160 litres
Shape Rectangular
Dimensions100 x 40 x 40 cm

Sotoboo Wall Hanging Fish Tank


Capacity5 litres
Shape Bowl
Dimensions29.5 x 14 x 26 cm

FerplastPlastic Fish Aquarium


Capacity6 litres
Shape Rectangular
Dimensions30 x 20 x 20.3 cm

Frequently Asked Questions

How Often Should You Clean a Fish Tank?

You’ll want to clean your fish tank every one to two weeks to remove any uneaten food and faeces from the gravel as well as replacing some, not all, of the water in the tank. A complete clean of the filter and tank walls should be done 2-3 times a year.

How Long Will a Fish Tank Last?

This will depend largely on the quality and material of the tank, as well as how well you have taken care of it. You should expect to get at least 5-10 years out of a properly maintained tank. Of course, your average guppy tank will not be as robust as a tropical tank so you should also bear this in mind.

How to Clean a Fish Tank?

Remove all decor and plants, scrubbing clean with a toothbrush where necessary. Some people like to use a net to transfer fish to another tank for holding while you thoroughly scrub the aquarium. If this isn't possible, you can clean the tank with the fish still in it, but be careful not to harm them!

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Written and researched by Annie Speight

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