5 Letter From The Editor by Courtney Tobler
6 Aquatic Notebook
• Prosocial, but not altruistic archerfish by Courtney Tobler
• Family travel guide for the aquarist by Michi Tobler
FEATURE ARTICLES
12 Plunging into Black Neon Tetra Habitat in Mato Grosso do Sul, Brazil by Tai Strietman
24 Traveling in Peru: Along the Río Perené by Anja Katzschmann and Norman Behr
36 Return to Paradise: Costa Rica by Ernst Sosna
50 River Snorkeling in the Pacific Northwest by Alex Rose
58 Reportage — Jewels of East Africa: the annual killifish genus Nothobranchius by Gregory J. Niedzielski
70 Reportage — Oreichthys: the headstander barbs by Dr. Paul V. Loiselle
78 Husbandry and breeding — A dream fish—Oreochromis schwebischi by M.C.W. Keijman
84 Husbandry and breeding — Maintenance and breeding of Oryzias cf. marmoratus by Stefan Baldus
DEPARTMENTS
90 Aquarium Calendar
92 Retail Sources
94 Species Snapshots
97 Advertiser Index
98 Underwater Eye
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