Neale Monks offers some advice to a reader whose Kribensis keeps attacking her mate. Q. Four months ago I bought a pair of Kribensis, hoping to breed them. The fish in the shop tank were in pairs, but ...

Central American cichlid expert Juan Miguel Artigas Azas explains how to keep the undescribed Honduran red point, a close relative of the Convict cichlid, Amatitlania nigrofasciata. Ever since this ...

Here's the second of a five-part series of lessons to guide new aquarists through the basics of fishkeeping. Infectious diseases are those caused by pathogens and parasites, and those are what we ...

Are fish really cold-blooded animals, or is it more complicated than that? Like reptiles and amphibians, fish are cold-blooded poikilothermous vertebrates —meaning they get their body temperature from ...

The National Marine Fisheries Service (Fisheries) has announced that it will review the Humphead wrasse (Cheilinus undulatus) for potential listing under the Endangered Species Act (ESA). WildEarth ...

This amazing aquascape has been set up using only plastic plants. Impressed? Jeremy Gay sings the praises of the Sydeco plastic plant range from Rosewood and organises a step-by-step guide to show ...

What happens to the black pigment as your goldfish ages? Paul Green advises. As goldfish age, their colour can change and they often become whiter, although the rate of this varies from fish to fish ...

The suction power of a finger-sized Northern clingfish is enough to hold up to 150 times its own body weight. Researchers at the University of Washington also discovered that the clingfish actually ...

Just how aggressive are these gorgeous fish - and is there any chance of keeping them successfully in a community tank? Bob Mehen has some advice for a reader who'd like to know if their reputation is ...

Once famed for inventing the word Aquarium (previously known as aquatic vivariums), ZSL London zoo is now without one, writes Steve Baker. Doors were closed on the aquarium facility for the last time ...

A quick look at some of the interesting fish we've seen in the shops recently.

A: Bob replies: Snails can sometimes become a nuisance in tanks, but usually this is the result of another problem. To reach ‘plague’ proportions they need to have a food source, and this is often ...