The authoritative information and advice you need, illustrated throughout with full-color photographs--now revised and redesigned to be even more reader-friendly! Goldfish are the most widely kept fish in the world. They are the quintessential first pet since goldfish are relatively inexpensive, easy to care for, fairly hardy, and very adaptable. With colorful photos, charts, and tables, this guide gives you information on: Choosing your goldfish Setting up and maintaining your aquarium The outdoor goldfish pond Feeding your goldfish Keeping your goldfish healthy