From garden ponds filled with Koi Carp to the humble goldfish bowl – the UK is a nation of fish lovers.
The Pet Food Manufacturers’ Association (PFMA) say there are an incredible five million indoor fish tanks in Britain.
Around 10 per cent of British households own pet fish – making them the third most popular animal to welcome into our homes after cats and dogs.
There’s plenty of choice when it comes to adding fish to (well prepared and correctly set up) home aquariums, with pet shops offering a bewildering range of interesting finned friends.
If space (and money) is no object then there are some incredible huge tropical fish you can opt to put in your enormous tank.
Here are 11 of the biggest - and most colourful - tropical fish for freshwater aquariums.
9. Bala Shark
Peaceful and striking, Bala Sharks can grow up to 14 inches. They’re active swimmers and prefer to be in groups - so are another ideal fish for school fans. The require large, long tanks with plenty of open space and clean water. Not real sharks... | Canva/Getty Images
10. Tinfoil Barb
Reaching 14 inches, Tinfoil Barbs are fast, peaceful, and social bars of scaley silver. Best kept in schools, they need a large tank and strong currents. They’re not aggressive but may bully smaller fish out of their food. | Canva/Getty Images
11. Jack Dempsey
Originally from Central American countries like Mexico and Honduras, the Jack Dempsey Fish is named after a famous 1920s boxer thanks to its fearsome face and aggressive nature. Best kept alone in a tank, it's also important to provide them with somewhere to hide away - all 10 inches of them. | Canva/Getty Images