For many people across the UK, the idea of having pets is tied to dogs, cats, or perhaps small furry animals. While these companions certainly bring joy, there’s another option that often gets overlooked: keeping fish and maintaining an aquarium. Far from being a second-choice hobby, fishkeeping can be deeply rewarding, beneficial for mental wellbeing, and more accessible than many imagine.
Whether you are looking for a calming presence in your home, a low-maintenance pet option, or a striking centrepiece for your living space or office, aquariums can tick many boxes. In this blog, we’ll explore why fishkeeping is such a good choice for so many people, discuss the positive impact on mental health, and share some practical tips for getting started—including alternatives such as aquarium rental for those who’d prefer to avoid the upfront commitment.
The Appeal of Aquariums
At first glance, fish might seem less interactive than dogs or cats, but aquariums hold a unique kind of charm. The graceful movement of fish gliding through water, the interplay of light with colourful plants, and the tranquil sounds of bubbling filters create a soothing mini-ecosystem right in your home.
Unlike some pets, fish do not require walks, training, or constant supervision. They are relatively quiet companions, making them ideal for people living in flats or shared housing where noise or space might be an issue.
From vibrant tropical fish in freshwater tanks to the mesmerising displays of marine aquariums, there’s a style and scale of fishkeeping to suit virtually every taste and budget.
The Mental Health and Wellbeing Benefits
One of the strongest reasons many people choose aquariums is the proven positive effect they can have on mental health and overall wellbeing. Research studies, as well as countless personal accounts, highlight how fishkeeping and watching aquariums can improve mood, reduce stress, and even support recovery in healthcare settings.
- Stress Reduction
Watching fish swim calmly in a tank has been shown to reduce cortisol levels (the body’s stress hormone). Many aquariums are deliberately installed in waiting rooms, care homes, and hospitals because they have such a calming effect on people who may be feeling anxious or unwell. The gentle, rhythmic movements of fish and the sound of flowing water can create a natural form of mindfulness, pulling you into the present moment.
- Improved Mood and Mental Health
Aquariums have been linked to lower blood pressure and improved heart rate, both of which contribute to feeling calmer and more relaxed. For people who struggle with anxiety, depression, or general low mood, having a tank to observe can provide daily moments of peace.
There’s also the satisfaction of creating and caring for a miniature ecosystem. Setting up an aquarium involves thoughtful planning—choosing the right plants, arranging ornaments, and selecting fish that thrive together. This creative process gives many people a sense of purpose and achievement.
- Therapeutic for Children and Older Adults
Aquariums can also be especially beneficial for children and older adults. Children often find watching fish fascinating, and it can be a gentle way to introduce responsibility through feeding and basic care. For older adults, particularly those living alone, an aquarium can reduce feelings of loneliness and provide a daily focus without the heavy demands of more traditional pets.
- Mindfulness and Relaxation
In a fast-paced, screen-dominated world, aquariums encourage us to slow down. Simply taking a few minutes to watch fish can provide the same calming benefits as meditation. For those who struggle with traditional mindfulness techniques, an aquarium offers a natural alternative.
Other Positive Aspects of Fishkeeping
Beyond mental wellbeing, there are plenty of other reasons why aquariums appeal to so many people in the UK.
- Low Maintenance Compared to Other Pets
Fishkeeping requires regular but not overwhelming attention. Tasks like feeding, cleaning the tank, and checking water quality are necessary, but compared with the daily walks, grooming, or training dogs and cats need, aquariums can feel much more manageable. - Aesthetically Pleasing
An aquarium can become a living piece of décor, transforming a room into a more vibrant and soothing environment. With the right lighting, plants, and design, it can act as a natural focal point in your home or office. - Educational Value
Keeping an aquarium is also a great way to learn about biology, ecosystems, and responsibility. Children especially can benefit from understanding how different species interact, the importance of water balance, and how small actions impact the health of living things. Some schools now even have educational aquariums in the classroom to help with lessons and projects. - Customisable to Your Lifestyle
From small betta fish bowls to large, intricate aquascaped tanks, aquariums can be scaled to fit your space and lifestyle. You don’t need a huge amount of room to enjoy the benefits of keeping fish.
General Advice for Beginners
If you’re considering keeping fish for the first time, there are some important things to bear in mind. A little planning goes a long way in ensuring your aquarium becomes a source of joy rather than stress.
- Start Small, But Not Too Small
While it might be tempting to begin with a tiny tank, smaller tanks are actually harder to maintain because water conditions can change rapidly. A medium-sized tank (around 60–100 litres) is often a good starting point.
- Do Your Research on Fish Species
Not all fish get along, and different species require different water conditions. Beginners often find tropical freshwater fish like guppies, mollies, or tetras to be hardy and forgiving. Goldfish are popular but can grow surprisingly large and need far more space than many people realise.
- Invest in Good Equipment
A quality filter, heater (for tropical fish), and proper lighting are essential. Skimping on equipment often leads to problems down the line, both for you and for the fish.
- Cycle Your Tank Before Adding Fish
One of the most common mistakes new fishkeepers make is adding fish before the water is safe. “Cycling” your aquarium means allowing beneficial bacteria to build up in the filter system, which helps break down waste products. This usually takes a few weeks, but it’s crucial for your fish’s health.
- Establish a Routine
Regular feeding (once or twice daily), partial water changes, and occasional tank cleaning are all part of the process. Once you establish a routine, these tasks become quick and easy.
Renting an Aquarium: A Stress-Free Alternative
For those who love the idea of having an aquarium but aren’t ready to fully commit, renting an aquarium can be an excellent alternative.
Companies, such as Aqualease, offer aquarium rental services, where they install a beautiful, fully stocked tank in your home, office, or even healthcare setting. The biggest advantage is that maintenance and cleaning are often included in the package, meaning you can enjoy all the benefits without worrying about water tests or algae scrubbing.
This option is particularly popular with businesses, waiting rooms, care homes, and schools, where the calming presence of an aquarium is highly valued but staff may not have the time or expertise to manage one. However, more individuals are also choosing rentals as a hassle-free way to enjoy fishkeeping without the long-term responsibility.
Final Thoughts
Keeping fish as pets and maintaining an aquarium can be far more rewarding than many people initially assume. Beyond the beauty of the tank itself, aquariums offer meaningful mental health benefits, from reducing stress and lowering blood pressure to promoting mindfulness and relaxation. They also provide a sense of purpose, educational opportunities, and a wonderful way to bring natural beauty indoors.
Whether you choose to dive in fully by setting up your own aquarium or take a gentler step with a rental option, fishkeeping is a hobby that can enrich your life in countless ways.
If you’ve been looking for a pet that fits easily into your lifestyle, brings calm to your environment, and adds a unique focal point to your home, an aquarium might just be the perfect choice.
