The ultimate photographic guide to freshwater fishes, this photo index is a long-awaited and invaluable tool for all aquarists and aquarium-fish professionals. Expert coverage of 4,000 popular and rare species make this a must-have stand-alone reference -- and an essential fish finder for all collectors of the Baensch Aquarium Atlas series. More than 4,600 color photographs. Includes a comprehensive 30,000-entry index to freshwater genera and species. Whether you know just a common name, an old scientific name, or just part of a scientific or common name, the resources in this volume will enable you to find the fish, its photograph, and an overview of its biology and aquarium requirements.