This book offers a comprehensive exploration of the integration of modern technology with sustainable agricultural practices, focusing on aquaponics, hydroponics, and IoT-based systems. It presents a collection of innovative research studies that demonstrate how these technologies can enhance the efficiency, sustainability, and productivity of food production systems. The book begins with an in-depth analysis of the critical role of water pH in aquaponics, highlighting the delicate balance required to maintain a healthy and productive ecosystem for fish, plants, and beneficial bacteria. It then introduces a fully automated harvesting system designed for indoor hydroponic crops, showcasing how robotics and automation can reduce labor and increase precision in crop management. Further, the book addresses environmental challenges in aquaculture, particularly the prediction and management of harmful algal blooms, through the development of an IoT-based monitoring system. This technology offers a proactive approach to safeguarding aquatic environments and supporting sustainable fish farming. Finally, the book explores the application of IoT technology in aquaponics, demonstrating how smart systems can improve sustainability and productivity in urban agriculture. By automating the monitoring and control of environmental factors, this approach reduces the need for manual intervention and enhances the overall efficiency of aquaponic systems. Ideal for researchers, practitioners, and anyone interested in the intersection of agriculture and technology, this book provides valuable insights into the future of sustainable food production.