It seems that the owners of tropical fishes suffer almost as much as the fishes themselves from the many ailments that afflict aquarium inhabitants. Perhaps the saddest part of the situation is that the incidence of disease in aquarium fishes is almost completely avoidable. That is why this excellent book stresses prevention by telling how to avoid health problems before they begin and how to recognize the symptoms of disease early, before the diseases have had a chance to do much damage. The book is iIIustrated throughout with over 100 full-colour photographs and fullcolour drawings that show both affected fishes, disease organisms and parasites. Chapters included cover examination of fishes, diagnosis of fish diseases, diseases caused by parasites, protozoans, drugs, and more. This book has been published by Tropical Fish Hobbyist Magazine, the world's largest aquarium publication. It has been edited by the full-time, expert staff of the magazine. No other publisher in the world has a full-time editorial staff this knowledgeable.