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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5. Variatus Platy
The Variatus Platy is native to Mexico. Unlike the majority of tropical livebearers, including other breeds of Platy, it tolerates cooler water well and offers bright colors, peaceful temperament, and easy breeding. | Canva/Getty Images
6. Weather Loach
Also known at the Dojo Loach, the Weather Loach is so named for its ability to sense barometric pressure changes - frantically swimming or standing on end when a storm is approaching. Native to East Asia, they are playful and quirky bottom-dwellers that enjoy cooler water with plenty of hidey-holes. | Canva/Getty Images
7. Ricefish
Also known as the Glassfish, the Ricefish gets its name from the fact that it can be found swimming around Asian rice paddy fields. Tougher than they look, they don't mind cool water and are the perfect fish for those who only have room for a small aquarium. | Canva/Getty Images
8. Rainbow Shiner
Native to North America, Rainbow Shiners shimmer with iridescent blues and purples. They require cool, clean water and do best in schools with good flow and oxygenation. | Canva/Getty Images