FIELD: production of larvae, growing of fish and crustaceous to commercial weight. SUBSTANCE: control station has temperature control unit with temperature sensor and two control channels, water level regulating unit and power unit, degree/hour counting unit and unit for measuring ion activity by medium reaction factor. Temperature control unit is designed to provide constant channels temperature difference of 0.4 C within the range of 4-38 C. Water heater switch relay is positioned at output of each channel. Degree/hour counting unit is connected to related output of temperature control unit and has ones, dozens, hundreds and thousands degree/hour channels. Hundreds and thousands degree/hour counting units are connected through related decoders to inputs of coincidence circuit, whose output is connected through power amplifier to aerator switch relay. Ion activity measuring unit switches medium reaction sensor, amplifier, comparator, power amplifier and chemical reactant supply actuating relay, which are connected in series, through medium reaction indicator. Amplifier is connected to related indicator. Control station may be connected to computer. Such construction provides precise keeping conditions required for successful reproduction of hydrobionts. EFFECT: increased efficiency and precision in conducting required processes, wider operational capabilities, provision for automatic controlling of values with minimum controlling by maintenance personnel. 2 cl, 1 dwg
