European killifishes part 1: the genus Aphanius in Spain
Matt Ford introduces the Aphanius killifishes of Spain: Eurasian, attractive, seldom discussed, and a long way from the African and American species that define the group.
Results for “sp.”
The article archive, searched in full.
How to take care of a Siamese Fighting fish - Betta splendens
What a Betta splendens actually needs — tank size, heating, lighting and the rest of the equipment, with the reasoning behind each.
Botiid fishes of the 'Modesta complex' – an analysis of natural history and behaviorisms
Mike Ophir on the loaches of the 'Modesta complex' — long treated as the community tank's cleaning crew, and still poorly served by what is known of their care.
Five new species of Badis described from West Bengal, India
Stefan van der Voort on five new Badis described from West Bengal, and on how much of that region is evidently still unexplored.
Three new loaches of the genus Cobitis Linnaeus, 1758
Thomas Frank on three Cobitis loaches that reached the hobby under the wrong name, and the work of establishing what they actually were.
Pupfish form evolutionary 'mountain ranges'
Barely kept and difficult to maintain, the pupfishes of the genus Cyprinodon are of outsized interest to evolutionary biologists. Their isolated desert waters are the reason.
Whaddaya mean, too hot?
Many aquarium fishes are held at temperatures they would never meet in nature. Rüdiger Rautenberg on how following the rules on heating may be costing you money.
The HMF - What's That?
Rüdiger Rautenberg on the Hamburger Mattenfilter — cheap, widely loved by German breeders, and barely known outside mainland Europe.
The Desert Fish Habitat Partnership
Freshwater conservation is set to become one of the most pressing environmental problems of the coming decades. A look at one partnership working on it in the American desert.
For Peat’s Sake...
Matt Ford argues the hobby should stop using peat — a valuable, non-renewable resource whose extraction is visible from orbit.
South Asian barbs - a guide to nomenclature
An extensive review has broken up the genus Puntius and moved a great many aquarium favourites into new genera. A guide to which name is now which.
New shrimp from Hong Kong and southern China
The 'tiger' and 'bee' shrimps have long been treated as variants of a single species. New descriptions from Hong Kong and southern China settle what they actually are.
Channa orientalis Bloch & Schneider 1801
Colin Dunlop on the dwarf among snakeheads. At around 10 cm, Channa orientalis asks far less of a tank than the metre-long relatives that give the genus its reputation.
Breeding Yasuhikotakia sidthimunki - the dwarf chain loach
Mark Duffill, a self-confessed loachaholic of thirty years, on keeping and finally breeding the dwarf chain loach.
A Passion for Cichlids
The first of an interview series. Ichthyologist and aquarist Michael K. Oliver on the systematics of Malawi's cichlids, and on diving the lake to collect them.
All the leaves are brown...
Colin Dunlop on dried leaf litter in the aquarium, a practice he took up after asking a dealer about a single brown leaf lying in one of their tanks.
FFSG has global mission
Freshwater habitats hold 0.3% of the world's water and almost half of its known fish species. The Freshwater Fish Specialist Group on what it intends to do about that.
New darter characins from Brazil
Almost every darter characin in hobbyist literature is called Characidium fasciatum. New species from Brazil are a reminder of how little that name settles.
Badis singenensis, the most unique badid gets a name – or does it?
Stefan van der Voort on a new Indo-Burmese badid and whether its name will stand — printed here in the original text, after a magazine altered it without asking.
Major Changes in New World Cichlid Taxonomy
A review of the herichthyin cichlids of Middle America has named eight new genera and moved a number of aquarium favourites between them. What changed, and why.