It’s important to know which tropical fish can happily share a tank - and which should be kept separately. Whether its lovingly-kept garden ponds filled with Koi Carp to the humble goldfish bowl ...

Some pet tropical fish are naturally placid, while others are fearsome predators.

If you're in the throes of setting up a home aquarium, you may be curious about the types of freshwater fish you can keep as a pet. Often the first fish that springs to mind is a goldfish, but there ...