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.
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Stunted growth means stunted lives
The first of a series supporting BIAZA's Big Fish Campaign, on why aquarium fishes are treated as disposable and why, in some cases, size really does matter.
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.
Cycling an Aquarium
Mark G N Ferguson breaks down the process every new aquarium depends on — where the ammonia comes from, where the bacteria come from, and how to get them established.
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.
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.