The authoritative information and advice you need, illustrated throughout with full-color photographs—now revised and redesigned to be even more reader-friendly! A saltwater aquarium provides a soothing, ever-changing mini seascape of color and motion. But saltwater fish require a constant, controlled environment. How do you set up and maintain a tank and select the right fish from more than 12,000 varieties? How do you care for marine fish? This updated guide provides the facts and advice you need and includes: