Ever wondered how many catfish there are? Matt Clarke has the answer. There are now over 3,000 species of catfish spanning more than 36 families, plus many more species waiting to be described.

They may be small in size but they're big in character, and that's why Boraras remain so popular. Kevin Conway sings their praises. Members of the genus Boraras are tiny cyprinid (carp-like) fishes ...

Do you know your Bach from your Stravinsky? It would appear that goldfish do… A new study reveals that goldfish can tell the difference between music composed by Johann Sebastian Bach and Igor ...

Chris Lukhaup takes a look at the new Panda, King Kong and Red ruby shrimps taking the world of freshwater invertebrates by a cash-fuelled storm. The first freshwater shrimps appeared in tanks around ...