It is possible to increase the efficiency of pond farms by introducing new digital technologies into the technological processes of fish cultivation. Recirculating aquaculture systems serve a positive example of high technology applications in aquaculture. Automated control of all processes in pond fish farming starting from pond preparation for stocking of fish to placement and production of commercial fish will significantly increase the efficiency of fish farming by 70-80% thus increasing the overall profit by 20-30%. For properly organized feeding of fish it is necessary to take into account many factors, such as: fish-holding density, temperature of water and air, content of oxygen dissolved in water, ph-level of water and feed intake. The system of complex automation of any production enterprise shall be implemented taking into account the technologies of the fourth industrial revolution – Industry 4.0. The main unit of the system is an automated floating feeder with autonomous power supply from solar panels. The design and functional features of the feeder will determine the functionality of the entire automation system: automatic feeding, monitoring of water and environmental parameters, deoxidation of the water basin, supplementary feeding with insects, frightening of fish-eating birds. The innovative approach proposed by the authors is that if the pond is equipped with several floating feeders it is necessary to connect them to each other in a single information system, which functions through wireless radio communication. The assessment of the potential of the proposed modernization of a middle pond made it possible to increase the profit by 1.5 million rubles.