From garden ponds filled with Koi Carp to the humble goldfish bowl (although goldfish are far happier living in a larger tank) – the UK is a nation of fish lovers.
There are an remarkable five million indoor fish tanks in the UK alone, according to the Pet Food Manufacturers’ Association (PFMA).
That’s about 10 per cent of British households – making fish the third most popular pet after dogs and cats.
It’s a fascinating hobby, particularly for youngsters, and there are few more relaxing activities than watching fish slowly swim around their home.
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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 finned friends that will happily live in the corner of your living room.
One think you should be aware of is that while many of the most popular fish, such as the Neon Tetra, need a heated tank, others are more than happy to chill in a cold water (or more accurately speaking a room temperature) aquarium - although you’ll still need a filtration system to keep them in tiptop fishy-shape.
Here are 12 amazing species of fish perfect to populate an unheated aquarium.
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9. Zebra Danio
Another staple of community tropical fish aquariums, the Zebra Danio is a hardy and energetic breed that are happy to live in cooler waters. Named after their distinctive striped patternation, they are native to South Asia. | Canva/Getty Images
10. Peppered Corydoras
These peaceful bottom-dwellers are excellent community fish. They scavenge for leftover food, tolerate cooler temperatures, and thrive in groups on soft substrate to protect their barbels. | Canva/Getty Images
11. White Cloud Mountain Minnow
A species native to China, the White Cloud Mountain Minnow is pretty much extinct in its native habitat, due to a compbination of pollution and tourism. Thankfully, they look likely to live on forever in aquariums. Small, peaceful, and great for beginners, these minnows enjoy cooler water. They're schooling fish with subtle beauty and do best in groups with live plants and gentle currents. | Canva/Getty Images
12. Rhinogobius Goby
Also known as the White Cheek Goby, these small fish are perfectly suited for cool, oxygen-rich water. Their territorial but interesting behavior makes them ideal for species tanks with hiding spots and moderate flow. | Canva/Getty Images