Marine aquarium

IN THE AUGUST ‘25 edition of PFK, I discussed at length one of my favourite oddball fish: the urchin clingfish, scientifically known as Diademichthys lineatus. In said article, I mentioned that althou

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

The oceans are constantly moving, and water flow is actually even more critical to corals than light. Many corals in the deep oceans survive without any light, gaining all their nutrition from capturi

An ecosystem evolves across thousands of years, a biological interaction that is both intricate and fragile. The arrival of a new species can disrupt the balance, as we have seen in Britain with grey

THINK OF SOUTH American fishes and we mostly think of species from the Amazon basin. Like all river basins, the Amazon has an edge, in this case, one of those edges is the Guiana Shield, a region rich

ALTHOUGH THE EVER-GROWING presence of online retailers has granted the fishkeeping community with access to countless species in recent times, I’m still very much a sucker for wandering into the store