Books

Deepen your knowledge and master every aspect of koi keeping with our range of authoritative koi books, aquatic health manuals, and Nishikigoi reference guides. Written by world-renowned breeders, Japanese koi judges, and aquatic veterinary specialists, our literature collection provides the practical insights and technical guidance needed to build thriving ponds, maintain optimal water quality, and care for prize-winning fish.

Our selection covers essential topics for hobbyists of all experience levels, from comprehensive pond construction manuals and advanced biological filtration blueprints to detailed disease diagnosis and treatment guides. Learn how to perform skin scrapes, identify common microscopic parasites, balance seasonal protein and wheatgerm feeding schedules, and master water chemistry parameters such as pH, KH, ammonia, and dissolved oxygen. For enthusiasts looking to refine their eye, our variety appreciation and judging books explore the history, body conformation standards, and skin quality markers across classic varieties including Kohaku, Sanke, Showa, and metallic Gosanke lineages.

Whether you are designing a brand-new filtration system, troubleshooting a fish health issue, or building a home reference library, explore our complete books collection to discover keeper-approved publications packed with invaluable knowledge for dedicated koi keepers.