The invention relates to a simulator determining the optimal parameters of the containers for the transportation of aquatic animals, being meant to make the correlation between the density and amount of biological material (kg of fish/mof water), the water aeration level, the transportation container volume and the aerator characteristics. According to the invention, the simulator consists of a container (1) made of acrylic glass for ensuring the visualization of the aeration phenomenon, an aerator (2) consisting of a circular plate with equally spaced orifices, an air pump (3) which ensures supply of the aerator (2) whose flow rate is read and controlled by means of a rotameter (4), a pipe (5) for sampling water that is being aerated, which by means of a peristaltic pump (6) is led to the measuring cell of an oximeter (7), provided with oxygen and temperature sensor and with display for displaying these parameters and then reintroduced into the container through the nozzle of a valve (8), the container aeration as well as changing the pressure on the free surface being ensured by means of a valve (9).
