An apparatus (10) for the aesthetic treatment of the extremities of the limbs of the human body with Garra rufa or similar fish, comprising a seat (11.21 11.2) in front of a lower water tank (14.1), open and forming an aquarium for Garra rufa or similar fish, in a manner such that the user occupying said seat can immerse the extremities of their lower limbs (i.e. ankles and feet) in this tank for an aesthetic treatment of these extremities.According to the invention, the apparatus comprises at least another water tank, open and forming an aquarium for Garra rufa or similar fish, which:- is hydraulically connected in a closed circuit (22, 23, 24 29, 30, 31) with respect to said lower water tank (14.1), in a manner such that the treatment water can be recirculated (Pi) between said water tanks (14.1, 14.2),- is accessible by the user with at least one extremity (i.e. at least wrist and hand) of an upper limb thereof, and- has the free surface of the water above the free surface of the water of said lower tank (14.1),and by comprising in said closed circuit filtration and purification means (Vf, Fb, Fc) , thermal conditioning means (Vr, Rs) and sterilization means of the recirculated treatment water, in a manner such that said apparatus:- allows the user to perform a comfortable and safe aesthetic treatment also of the extremities of the upper limbs of their body occupying said seat clothed,- is functionally independent from any water supply network,- contains a sufficiently large mass of treatment water to allow both correct purification, filtration and sterilization of the water for the hygiene of the person and the health of the fish and the appropriate thermoregulation of the water useful both for the fish and for the person. (Fig. 3)
