This research was conducted in September-November 2018. The aim of this research was determine the effect of substitution soybean meal with fermented water spinach leaves (Ipomoea aquatic Forsk) in diet on feed efficiency and growth of green catfish (Hemibagrus nemurus). This research used Completely Randomized Design (CRD) with one factor 5 treatments and 3 replications. The treatment in this …