ABSTRACT This research was carried out for 40 days from December 2021 to January 2022 at the Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine, Riau University, Pekanbaru. This study aimed to find out the effect of immersion eggs with different doses of vitamin C on egg hatchability, growth, and survival of Asian redtail catfish larvae and to find out the best dose of vita…