5 Letter From The Editor by Courtney Tobler
7 Letter From The Publisher by Stephan M. Tanner, Ph.D.
8 Aquatic Notebook
• In Memoriam, Heiko Bleher 1944–2025 by Flávio Lima
• A new species of Rineloricaria catfish by Friedrich Bitter
• Two new bettas from Sumatra by Courtney Tobler
FEATURE ARTICLES
12 Beyond the Ordinary: Livebearers from extreme environments by Michi Tobler
26 Xiphophorus variatus: More than just a pretty platy by Rudolf Suttner
38 Fish Breeding: Maintaining Genetic Health by Diana Walstad
46 Dermogenys siamensis: A small halfbeak from Thailand by Anton Lamboj
50 Reportage: A spotted beauty: Caridina sp. ‘Dalmat’ by Sebastian Wolf
54 Reportage: Etia nguti: an endemic cichlid of southwestern Cameroon by Michel C.W. Keijman
60 Reportage: An electric blue jewel from Lake Malawi: Sciaenochromis fryeri by Wolfgang Staeck
64 Husbandry and breeding: The first successful breeding of Glossamia wichmanni by Dong Hoon Lee
72 Husbandry and breeding: Breeding the freshwater pipefish Enneacampus ansorgii by Roland Morte
80 Husbandry and breeding: The Blackworm Breeder Box Method: one hobbyist’s breakthrough in culturing Blackworms by Mandy Goan
84 Conservation guardians of the goodeids: an international coalition to urgently conserve and protect Mexico’s most threatened group of fishes by Michael Edmondstone, SHOAL
DEPARTMENTS
90 Events Calendar
92 LFS Locator: Outstanding aquarium shops
94 Species Snapshots
97 Advertiser Index
98 Underwater Eye
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