ABSTRACT Azolla (Azolla microphylla) can be used as fish feed and has a high protein content of 24-30%. The purpose of this study is to know the use percentage of azolla flour waste is fermented with kombucha in feed to increase feed efficiency, protein retention, and gouramy (Osphronemus gouramy) fingerling growth. This research was conducted for 56 days at the Reservoir of Fisheries And …