Fish farming plant with a central tank that is at least partially surrounded by one or more fish tanks where at least one of the one or more fish tanks has an inner wall with an inner wall face and an outer wall with an outer wall face, said fish tank having a fish tank width as the distance between the inner wall face and the outer wall face along the extent (azimuth, arc) of the at least one fish tank； the fish farming plant further comprising at least one divider wall with a divider wall width between an inner end and an outer end of the divider wall and configured to span between the inner wall face and the outer wall face； wherein the divider wall width (240) is larger than the fish tank width.
