Fish Tanks

Explore Swell UK's full range of fish tanks for sale, from compact starter kits to full-size show aquariums in tropical, coldwater, and marine setups. Every complete kit comes with a filter, heater, and LED lighting, and most include a matching cabinet. You'll find leading manufacturers, including Evolution Aqua, Aqua One, AquaEl, Fluval, and even our very own Swell range.

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Help and advice on shopping for: Fish Tanks

Create an aquarium your fish will love

Fish tanks come in all shapes and sizes, offering comfort for your fish and a stylish centrepiece for your home. In our range of fish tanks, there is something to suit every type of aquarist, including cold water, tropical, and marine setups.

What are fish tanks?

Fish tanks have come a long way from a brittle glass bowl on a bookshelf. Our full range of modernised aquariums are larger, offering more comfort to resident fish. Aquariums are designed to be much more durable, ensuring that leaks and breakages are rare. All tanks must also be placed on a specially designed cabinet that doubles as storage for hardware, food and other supplies. Unlike a standard bookcase, these cabinets are reinforced to take the weight of the large water volume on top of them. Therefore, your aquarium will be positioned safely for optimal display. Cabinets can be purchased separately, or part of a bundle depending on what stock is available.

What is the difference between a fish tank and an aquarium?

Fish tanks are designed mainly for holding fish, regulated for aquarium keepers to study and enjoy livestock. A tank is nothing more until you fill it up. Once a tank is holding fish, plants, decorations, substrates etc, an aquarium is made. Aquariums hold an underwater closed ecosystem, and can be planted, tropical, coldwater, or marine. The two phrases are interchangeable, but technically have their own definitions.

What are the main types of fish tanks?

We stock a variety of types, including nano and small tanks, corner tanks, fish bowls, and more. Fish bowls and nano tanks suit very small species. Cold water fish tanks are designed to hold fish that are comfortable with fresh water outside of the tropics. Corner tanks are built to fit into the corner of your room using the space effectively. Stands and cabinets are specially reinforced to support the weight. Marine tanks are designed to hold saltwater fish and are typically the largest tanks. Tropical tanks are heated tanks that provide a habitat suitable for tropical fish.

Why should I buy a fish tank?

Aquariums have been proven to relieve stress and even lower blood pressure in those that own them. They form the centrepiece of any room, especially when decorated with ornaments, plants, and backgrounds. They are also a fantastic choice for parents, as they easily capture the imagination of children and present a wide range of education opportunities.

What should I look for in an aquarium?

As a aquarist or hobbyist getting into the fish keeping hobby, choosing one is about finding something suitable. It is recommended to research the inhabitants, decorations and hardware you intend to buy before making the purchase. It is strongly advised to find out exactly how much space each fish you plan to own will need. You can then cater the size and design of your tank to those specifications. Once you have completed your much needed research, you can look at stocking up on all the hardware and accessories you will need. This will include a filter, lighting equipment, a heater, decorations, and substrate.

What should I do if I am struggling to find what I need?

Don't worry if you are struggling to find all the answers to your questions. Study and research takes time. You are welcome to contact our aquatic experts at Swell UK for more information via one of the UK's leading indoor aquatic distributors. You can send an e-mail via our contact page.