Choosing your aquarium size

Aquariums can be as small as 10 litre starter kits to 400 litre centrepiece tanks. Tanks on the smaller size may be suitable for tropical fish, but are ideal for keeping shrimp, snails, and plants. However, large aquariums are more stable and even forgiving when it comes to water quality, and can support a vibrant selection of many species.

For beginners who are interested in colourful communities of fish like guppies or neon tetras, a 60cm tank is an excellent choice. Species such as angelfish or gouramis require a tank around 90cm, and large fish like clown loach or silver sharks need even more space. 

Aquariums are heavy, especially when filled with water. Any aquarium above 40L should be situated on an aquarium spec cabinet for safety. If you're interested in a very large tank, it's worth a quick check that your floor can take the weight.

Explore our range of tropical aquariums and cabinets to find the perfect tank for your space.

Tip: The bigger the aquarium, the easier it is to maintain stable water parameters, so we recommend to go as large as your budget and space will allow.

Aquarium shapes and styles

Rectangular tanks are always the most practical choice, as they provide plenty of space for your aquatic creatures, and are easier to clean. Taller tanks are more appropriate for discus and angelfish, whilst shallow designs are better suites for bottom dwellers like catfish. 

There are many decorative shapes available, such as cubes or hexagons, which can add a unique flare to your living space. It's important to bear in mind that shape affects space, so you may need to understock tanks, or choose less active species for this size to allow plenty of room for swimming. 

Tip: Consider maintenance as well as looks, can you comfortably reach the bottom of your tank for cleaning and decorating?

Hexagon shaped tropical aquarium with plants, fish and natural decorations.
Unusual shaped tanks may be harder to maintain, but they add a unique flair to your home

Where should I place my aquarium?

Placement is important to consider before setting up your tank. It's always advised to keep your aquarium out of direct sunlight as it fuels the growth of algae. Avoiding radiators and draughty areas reduces the chance of a temperature fluctuation that can harm your aquarium fish. 

You'll also need power outlets nearby, or to situate your tank in an area that can be reached with an extension cable. Depending on your setup, you'll likely need a minimum of 2 outlets, or even more for your filter, heater, and lights.

Tip: Positioning your aquarium somewhere you can sit back and enjoy it every day is one of the rewards of fishkeeping.

Tropical fish tank with tropical fish, plants, and gravel in a living room.
Selecting the right location for your tank is essential in supporting the ecosystem, and for your viewing

Open top or hooded tanks?

Open-top, rimless fish tanks give a sleek and modern aesthetic to your living space. You'll even have more freedom to choose lighting, creating a beautiful view, even at night. Feeding and maintenance is also completely unrestricted, allowing you constant access to your tank. However, if you have an open top aquarium and are concerned about safety, you can always add an aquarium cover to prevent fish from getting out.

Hooded aquariums are the most popular choice as they reduce evaporation, keep dust out, and add safety for fish that are more likely to jump. Often, hooded aquariums feature built-in lighting, allowing for a cost effective setup.

Tip: Hooded aquariums are typically better for beginner fishkeepers thanks to their safety and cost effective design.

Open top Swell tropical aquarium with wood, plants, Betta fish and LED lighting.
Open top tanks allow full access for cleaning, viewing, and maintaining

What's in an aquarium kit?

Aquariums are sold as kits with varying contents, or simply just a bare tank. Starter kits typically come with a filter, heater, and lighting, making them ideal for beginners. Larger aquariums may even come with an aquarium cabinet. Tanks with no equipment are ideal for fishkeepers who want to customise their setup completely, giving the freedom to choose their favourite pieces of equipment, or the most species suited models.

Tip: Tailoring your setup to the specific needs of your chosen plants and fish is easier with a bare tank.

Swell 60cm tropical aquarium kit featuring tank, lighting, heater, filter, net, food, and dechlorinator.
Some aquarium kits come with everything you need to get started, perfect for beginners

Important things to consider

As well as size and equipment, you'll also have a range of materials and finishes to choose from. Standard glass is the most commonly available, although low iron glass gives an ultra-clear view. Acrylic tanks are also lightweight, low-cost, and safer for households with children.

Tip: If you might upgrade to a marine tank in the future, be sure to make sure your chosen aquarium is suitable first.

Essential tropical aquarium equipment

To get you started, you'll need:

  • Aquarium: with or without cabinet, depending on size
  • Filter: suitable for handling your aquarium's capacity
  • Heater: 1w per 1L of water is recommended
  • Lighting: choose plant-specific LEDs to suit underwater plants
  • Substrate: available in a range of coloured sand, stones, and gravel
  • Decorations: not just for visual appeal, but to provide shelter that keeps your fish comfortable
  • Water conditioner: such as tap-water conditioner and bottled beneficial bacteria
  • Test kits: to keep track of your water conditions

Tip: If you're unsure on heater or filter size, always size up. It's better to be over-powered than under-powered.

Ready to get started?

With careful planning and considering size, style, placement, and equipment, you'll be ready to choose an aquarium that gives your fish a healthy environment to thrive in. 

Explore our full range of aquariums, cabinets, and décor today.