Abstract: The present invention relates to a fish fanning plant adapted for floating in free water. The plant comprises a substantially vertical inlet pipe and a corresponding outlet pipe for taking in and discharging water, respectively, at a water depth having the desired water quality at a depth (h). A substantially horizontal residential compartment of an accommodation assembly has an inlet end and an outlet end. Lattices are provided at these ends. Also provided at said ends are angled end sections for connecting the inlet pipe, outlet pipe, and residential compartment. The plant also comprises at least one means for providing water flow through the residential compartment. The invention further includes a module for a residential compartment of a fish fanning plant, a method for manufacturing an accommodation assembly, use of such a fish fanning plant for smolt, as well as a method for emptying such a fish farming plant.