The present invention relates to a fish plant intended to float in sea water moored to the seabed by one or more moorings terminated at the top in a single point mooring fixed to the plant in a single point at a front or a bow shaped end of the plant. The plant according to the present invention may preferably weathervane, dependent upon the direction of current, wind and/or waves. Alternatively the plant may be moored in such orientation that the front or the bow of the plant is heading up against the pre-dominating or prevailing direction of waves. By providing the plant With a bow shaped front, and possibly protecting sides, the fish cages may be protected from drifting and/or floating wreckage or debris, thus eliminating or at least substantially reducing the risk exposure for damage to the Fish cages contained therein. At the rear end of the plant a system for removal of lice may be arranged. Preferably as an integrated part of the plant, the system using fresh water for de-licing.
