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.
Results for “temporary hardness”
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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.