Mini marvels: the world of tiny fishes

Dave Lewis recalls a trip to explore the National Museum of Wales’ collection of rare and unusual fish, and asks why these sorts of catches seem to be becoming more common

Squinting, it looks like a piece of popcorn. It’s hard to imagine this tiny orb could be a lifeline for coral reefs around the world. “That will have maybe eight or 12 eggs,” says Dr Jamie Craggs as I

AFTER LIVING WITH the corydoras sand bank aquarium for 4 months, I finally made up my mind. I did want to keep some form of characin in this tank to help the small catfishes feel safe. The presence of

THE CARIBBEAN HAS long been regarded as a diver’s paradise, and for good reason. A sprawling patchwork of islands, spread over a million square miles, they encompass almost every type of underwater ha

WITHIN THE AQUARIUM hobby, all sorts of bottom-dwelling, cyprinid-adjacent fishes are referred to by the name 'loaches'. So, we have the hillstream loaches of the family Gastromyzontidae, of which the

The globetrotting, dandyish Arctic charr’s story is full of mysteries–not least its links to Loch Ness