This research was conducted for 30 days, from 20 Januari to 19 Maret 2017 at the Laboratory of Fish Hatchery and Breeding, Faculty of Fisheries and Marine Science, University Of Riau, The Purpose of his study was to research the effect of the hCG (human Chorionic Gonadotropin) dose on ovulation eggs, eggs diameter, and hatching fish eggs. The method used in this research is descriptive method w…