For being provided with the outlet bath (4) of the fence of breeding fish (1) of the outlet hose (91,99) that at least one extends to the water surface (17) from outlet bath (4), outlet bath (4) includes:Its top (410) is provided with mounting collar (43) and its underpart (419) are provided with the cylindrical shell (41) of pass through openings (413), and this mounting collar is arranged to the bottom (179) being attached to fence of breeding fish (1);A part is accommodated in the cylindrical exit port passage (45) in housing (41), and the top (450) of exit passageway (45) is provided with the filter (453) of the cross section of cover outlet passage (45);Elongated annular space (46) between housing (41) and exit passageway (45);Cover the inclination grid (47) of whole annular space (46), the foot (479) tilting grid (47) is configured to the opening (413) of slightly below housing (41);Hermetically cover the inclined floor (49) of whole annular space (46);And the lower pass through openings (493) of the foot (499) in base plate (49).
