Fish farming practises are designed to allow animals to reach their full potential for growth and development. It is therefore vital to provide them with the best possible living conditions. Stress is a critical issue to consider in aquaculture because it can severely damage fish performance. It's critical to quantify stress's influence in order to better predict its consequences. Stress is the body's natural response to a perceived or possible threat, in which the body's systems prepare for "fight or flight." Throughout their life, farmed fish are subjected to a variety of stressful situations. Fish initiate an endocrine stress response in stressful settings. When it comes to achieving sustainable production, stress — particularly chronic stress – cannot be overlooked. As a result, in the next few years, the monitoring and subsequent moderation of chronic stress levels in order to prevent fish becoming more sensitive to disease will become critical for the industry.