A dipping tank includes a pump, a container, a fitting, and a plate which is used to place objects, such as corals, to be dipped. The pump draws fluid from inside the container and discharges it into the container through the fitting. The fitting includes two flexible hoses, one with a propulsive nozzle and the other with one or more dipping nozzles. The propulsive nozzle produces a jet which impinges upon the blades protruding from the bottom side of the plate causing the plate to rotate. The dipping nozzles eject jets which are used to spray and thereby dip the objects. Flexible hoses are configured so as to provide movements in 6 degrees of freedom for the nozzles. Flexible hoses may also further comprise valves to control fluid flow through said hoses.