Fish nutrition and feeding play pivotal roles in aquaculture, ensuring the health and optimal growth of aquatic species. A well-balanced and nutritious diet is essential for enhancing fish immune systems, reproductive capabilities, and overall vitality. Various factors, including species, life stage, and environmental conditions, influence the dietary requirements of fish. Nutrient-rich feeds containing proteins, lipids, carbohydrates, vitamins, and minerals are formulated to meet these specific needs. Additionally, advancements in aquafeed technology aim to enhance digestibility and minimize environmental impact. Feeding strategies, such as feeding frequency and portion control, are crucial for preventing overfeeding and maintaining water quality. Understanding the intricacies of fish nutrition is fundamental for sustainable aquaculture practices, fostering both the industry's growth and the well-being of aquatic ecosystems. Researchers and practitioners continually explore innovative feed formulations and feeding regimes to optimize fish health, ensuring a responsible and thriving aquaculture sector.