These pet aquarium fish are all real cool... From garden ponds filled with Koi Carp to the humble goldfish bowl (although, goldfish really need far more space to thrive) – the UK is a nation of fish ...

If you have a small flat but still want to keep fish, or your child wants some in their bedroom, a so-called "nano aquarium" might seem like the right way to go. These smaller-sized aquariums are ...