Authoritative text, crystal - clear photography and a systematic approach make the Dorling Kindersley Handbook of Aquarium Fish the most comprehensive guide to all kinds of marine and freshwater aquarium fish. Packed with over 700 full - colour photographs of more than 500 varieties, it is designed to cut through the complicated identification process and enable you to recognize a species instantly. Photo - encyclopedic Approach Each entry combines a precise description with annotated photographs to highlight the chief characteristics and distinguishing features of each fish. Colour maps indicate the natural range of the species, while colour - coded bands provide at - a - glance information on size, diet and temperament. Identification Made Easy For beginners and enthusiasts alike, the Dorling Kindersley Handbook of Aquarium Fish explains what a fish is, how aquarium fish are grouped and classified, and how the many different underwater environments have affected body shape, markings