The article discusses the problems of supplying fish farms with feed and increasing the proportion of live feed in the fish ration. The possibilities of use the natural forage base of ponds for these purposes are shown. A review of electro-optical devices for feeding fish based on attracting flying insects to ponds using optical radiation is carried out. Stimulating the attraction of insects by creating optical radiation with different colors allowed us to increase the efficiency of the devices. The use of these electrical devices leads to an increase in the productivity of ponds and a decrease in the cost of artificial feed for fish.