In Japan, breeding koi-a colorful and beautiful member of the carp family-has occupied a position between hobby and art form for more than two centuries. This stunningly illustrated book, compiled by a team of koi experts, shows and tells aquarium enthusiasts virtually everything they need to know about this fascinating activity. Koi are hardy fish, relatively large in size, and the most practical way to keep them is in an outdoor pond. Combining text with illustrations, an important section of the book explains the requirements of a garden pond for koi, showing the filtration system and pointing out how it functions.