The objective was to evaluate levels of inclusion not yet tested of moringa leaf flour in the diet of Nile tilapia juveniles, under economic analysis. The experimental design was completely randomized, with four levels of inclusion of moringa leaf meal (0%, 5%, 10% and 15%) and five repetitions, with 15 fish with an initial weight of 13.31 ± 0.74 in a 100-liter aquarium as an experimental unit, lasting 30 days. It was observed that the inclusion of this bran in the diet is not feasible, because as this ingredient was included, the feed increased and the profit decreased through the activity.