ABSTRACT A management tool for mechanized aquacultural farm operations was developed. The specific operations for mechanized aquaculture farm operations were identified to include; concrete culture/breeding tank design, water quality management, fish record, feed records, feeding, cost simulation, economic analysis of operations and general report on various individual operations. The management tool was a computer programme developed in Visual Basic. The versatility and object oriented capability of Visual Basic was exploited. Appropriate design consideration for concrete culture/breeding tank design was adopted following establishment and standard procedures. Water quality management, feed composition and nutrition requirements were based the minimum acceptable data as recommended for rearing catfish Wayne (2004). Two different sets of production cycle data were obtained from an existing farm, Icon Fishery, Ganmo, Kwara State, Nigeria to validate the programme. The developed management tool was used to stimulate similar production cycle following the prevailing operation condition at Icon Fishery Farm. The result of the actual data from the Icon Fishery show of a profit of N 426,191 in the first data analyzed while in the second data a deficit of N 206,649 was obtained the results of the predicted data also indicated profit of N 485,958 was for the first data analyzed with similar category of data used for the real life data from Icon fishery and a loss of N 70,402 was obtained for the second set of data following the same procedure for the first data analyzed. Data analysis was carried out to determine whether there was a significant difference between observed data results and simulated data results using the method described b