This research was conducted on Januari-Agustus 2023, at Fish Nutrition Laboratory of Fishery and Marine Faculty of Riau University. The aim of the research is to determine the effect of using Indigofera leaf meal (Indigofera zollingeriana) fermented with Rhizopus sp. on the digestive enzyme activity and intestinal histology of Hemibagrus nemurus. This study employed a Completely Randomized Desi…