This study investigated fish production in Egypt. Under Fish Macroeconomics in Egypt, fish production has expanded to about 418,600 tonnes in 2020 from natural fisheries. But fish farming reached 1.59 million tonnes in 2020 (compared to 1.64 million tonnes in 2019, decreasing by 3%). Based on the fish microeconomics production function in fish farming, the independent variables can be arranged according to the relative importance of their impact on the fish mixture (mullet and tilapia). The variable feed quantity occupies the first place, followed by organic fertilisation, the number of fingerlings, the number of employees, the duration of the production cycle, the amount of oil and fuel, and finally the farm manager's experience. Based on the cost structure, fixed and variable expenses made up 13.2% and 86.8% of total operating costs, respectively. Based on the fish microeconomics profitability function, the findings revealed how successfully tilapia and mullet fish were produced per acre in sample farms in Fayoum Governorate: The ratio of total revenues to total expenses was roughly 1.9. The quantitative break-even threshold was 0.34, which means the production process is in the farm owners' interest. Therefore, fish farm profitability analysis is favourable. Encourage farm owners to maintain and grow production initiatives and handle producer difficulties.