Filling of reservoirs with commercial fish species began in Belarus. For several months, biologists studied the waters of the Grodno region lakes and selected the optimal fish species that would not disrupt the local ecosystem. As a result, carp, white amur, and pike were chosen. At first, the weight of the fish is about 200 grams, but they grow to a kilogram in a bout a year. By the end of November, it is planned to fill the reservoirs of the region with more than 5 tons of fish.