This research aimed to obtain the differences in stocking on the growth and survival of swamp eel with biofloc systems. The method in this research used a Completely Randomized Design (CRD) of one factor consisting of four levels of regulation with three replications so that 12 units of an experiment, namely: 1. Stocking density of 10 ind/ 25 liters, 2. Stocking density of 20 ind/ 25 liters…