From garden ponds filled with Koi Carp to the humble goldfish bowl (although, goldfish need far more space than a bowl can offer) –Britain is a nation of fish lovers.
Around 10 per cent of British households own pet fish – that means they are the third most popular animal after cats and dogs.
There’s loads 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.
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 aquarium (although you’ll still need a filtration system to keep them in tiptop fishy-shape).
Here are 13 amazing species of fish perfect to populate an unheated aquarium.
9. Paradise Fish
Found across East Asia, the Paradise Fish is one of the most exotic-looking fish that can thrive un an unheated aquarium. Surprisingly hardy, the males can be aggressive, so be careful what fishy friends you choose to introduce into their tank. | Canva/Getty Images
10. 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
11. Bristlenose Pleco
If you are looking for afish to rid your unheated aquarium of algae then the Bristlenose Plecos, or Bristlenose Catfish, is a great choice - they love munching on the green stuff. Originally from South America, they are peaceful and don't grow too large (like their close cousin the Common Pleco). They look exactly as the name would suggest! | Canva/Getty Images
12. 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