The HMF - What's That?
Rüdiger Rautenberg on the Hamburger Mattenfilter — cheap, widely loved by German breeders, and barely known outside mainland Europe.
Results for “cross”
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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.
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.
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.
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.