The nile tilapia is by far the most commonly used species in fish farming. However farming of this species in ponds results commonly in early maturation as low as 70 g fish body weight only. Hormones can be used to control reproduction to produces good-size fish, although they can pose some risks to human health. Saponin can be a good alternative to control reproduction according to Christian Lückstädt, Paz Kühlmann and Yasmin Primavera-tirol.