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.
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Almost every darter characin in hobbyist literature is called Characidium fasciatum. New species from Brazil are a reminder of how little that name settles.
Ichthyologist John P. Sullivan on Africhthy, the collaborative research portal he has built for the freshwater fishes of Africa.
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.
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.
What a Betta splendens actually needs — tank size, heating, lighting and the rest of the equipment, with the reasoning behind each.
The candiru has been credited with destroying manhood for over two hundred years. What the fish actually does, and how much of the legend survives the checking.
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.