The mutualistic association with pistol (alpheid) shrimps has evolved twice within the goby lineage, according to a study published in the most recent issue of the journal Molecular Phylogenetics and ...

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 ...

Whether moving home, selling to a friend, or rehousing fry, at some stage we all need to catch and transport fish. Here’s how to do it. Transporting fish is a necessary evil of the hobby. It almost ...

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 ...

Is it time we took a closer look at hybrid fish? Nathan Hill thinks so, and the results aren't pretty. Have a long, hard stare at the above. To me, that doesn’t look like a great specimen of a skull.

Defra has confirmed that the proposed Animal Welfare Bill will not make it illegal for shops to sell fish that have been injected or tattooed with dyes. Many trade experts had assumed that the ...

The Elephant ear gourami, Osphronemus exodon, is just like an O. goramy with teeth, says Matt Clarke. Common name: Elephant ear gourami. Scientific name: Osphronemus exodon, Roberts, 1994. Origin: ...

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 ...