The main task of modern robot developers is to create realistic autonomous devices with an efficient power supply system. As a result of a partnership program of engineers and scientists from Cornell University and the University of Pennsylvania, a winged robot was created with organ mechanisms filled with artificial blood. The autonomous power supply system of a standard robot is a bulky battery, with many wires and mechanisms. The lionfish created by scientists has a unique design in which the electrolyte solution performs the functions of energy storage and hydraulic fluid. A robot fish of this design can spend 36 hours in \A unique experiment with a fish-robot combines in a single system the transmission of hydraulic forces and the accumulation of energy and transmission of movements. The main purpose of such mechanisms is to expand the functionality of a special class of soft robots. The ideology of the experiment can be used in cars and other mechanisms using hydraulic fluids. In addition, this method of energy supply can bring the creation of robots that mimic living organisms.