This book is a comprehensive manual on breeding, rearing, and marketing freshwater tropical fish and goldfish, written by an experienced fish farmer with over 30 years of hands-on practice. After decades of breeding fish—first as a hobby and later professionally—the author recognized a lack of clear, practical information in the field and wrote this book to fill that gap. It offers both basic and advanced techniques, explained in clear, accessible language and supported by numerous photos and illustrations. The opening chapters cover fundamental topics such as water quality, sex identification, and quarantine procedures, while later sections expand into more advanced breeding and farming strategies. The book’s carefully organized structure, detailed table of contents, and comprehensive index make it easy to navigate. Covering a wide range of subjects—from fish conditioning, reproduction methods, and breeding setups to water chemistry, disease treatment, marketing, site selection, and production strategies—it serves as a practical, in-depth reference for both commercial breeders and dedicated hobbyists. Importantly, the book goes beyond simple instructions: it explains the reasoning behind each method, helping readers understand not just what to do, but why it should be done that way.