Abstract: This research was conducted in September-November 2019 at the Biopharmaca Laboratory of the Medical Faculty of Hasanuddin University Makassar and at the Artificial Feed Production Laboratory, Bosowa University Makassar. The aim of the study was to determine the length of immersion in the cepoka eggplant fruit extract (Solanum torvum) against the change in male to female sex in catfish (Clarias sp.) seeds. The results showed that the length of immersion of catfish seeds in the Cepoka eggplant fruit extract had no effect on the change in the sex of males to females of catfish seeds. Likewise, the length of immersion in the Cepoka eggplant fruit extract did not affect the survival of catfish seeds.