Nile Tilapia (Oreochromis niloticus) is a species of freshwater fish that is popular among Indonesian people and has high economic value. The growth rate of male nile tilapia is 40% faster than female tilapia, indicating that male tilapia are more productive to produce. One effort to increase male sex reversal in tilapia is by masculinizing it through soaking in Karamunting leaf extract. This r…