The impermanent biotope

At this time of year many lakes and rivers are thick with it but, while many anglers may curse the green stuff, here’s why the underwater world would be all the poorer without it...

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

Shaun Leonard rebuts assertions made by beaver rewilders

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

I’VE BEEN VERY lucky to observe a number of popular aquarium fishes in the wild, from marbled hatchetfish in the Amazon rainforests of Colombia, Stiphodon gobies in the highland rivers of the Philippi

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