The feral fish of two countries

DR PETER BURGESS Peter is our disease expert. Send questions his way if you have pathogen problems. BOB MEHEN Bob is a master of fishkeeping general knowledge and community tanks. JEREMY GAY Jeremy is

IT HAS BEEN my longstanding dream to keep miniature versions of aquatic giants in my aquariums. I’m pretty sure that many of you wouldn’t mind having a pygmy white shark or a dwarf killer whale (had t

OF THE MANY pressing ecological issues facing the world today, invasive species come in near the top of the list. The aquarium trade is not blameless in its role of introducing unwanted species well o

MY AQUARIUM JOURNEY began with Malawi cichlids. I dove deep, focusing so intensely on Mbuna that I barely noticed any other fish in stores. That has now definitely changed; I’m finally ready to embrac

In Potopaddu harbour, on the island of Sumbawa, Indonesia, we were navigating through a narrow and tricky channel, with minimal depths, which then widened into a large, sheltered pool. There were seve

The roach might not be a tasty catch, but this sound and sociable shoal fish is so adaptable it can thrive in all manner of less than desirable waterways