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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

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

90     Aquarium Calendar
92     Retail Sources
94     Species Snapshots
97     Advertiser Index
98     Underwater Eye

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