An aquatic cultivation system comprises a tank body and a siphon apparatus. The tank body stores a liquid. The siphon apparatus comprises a liquid input tube disposed in the tank body, a U-shaped tube connected to the liquid input tube, and a liquid output tube connected to the U-shaped tube. At least one of the liquid input tube and the liquid output tube is provided with an air hole. The siphon apparatus is provided with a water level control member disposed in the air hole. The water level control member comprises a connecting portion and a stopper disposed on the connecting portion. In which, the stopper may have a reciprocating displacement trajectory following the water level height variation of the liquid, so that the stopper may close or open the air hole during the process of the reciprocating displacement trajectory, and thus the siphon apparatus may intermittently suck the liquid in the tank body for cleaning the filth inside the tank body and intermittently generating the turbulent flow to prevent the filth from being deposited at the bottom of the tank body.一種水生養殖系統,包含一缸體及一虹吸設備,該缸體儲有一液體,該虹吸設備具有一位於該缸體內的入液管,一連接該入液管的ㄇ型管及一連接該ㄇ型管的出液管,該入液管與該出液管至少其中一者具有一氣孔,而該虹吸設備具有一設於該氣孔的水位控制件,該水位控制件具有一連接部及一設於該連接部的制動部,其中,該制動部會隨該液體水位高度變化而呈一往復位移軌跡,使得該制動部於該往復位移軌跡的過程中以封閉或釋放該氣孔,進而驅動該虹吸設備間歇吸取該缸體內的該液體,藉此清除該缸體內的穢物並間斷產生擾流以防止穢物沉積於該缸體底部。1.............缸體 2.............虹吸設備 21.............入液管 22.............ㄇ型管 23.............出液管 24.............水位控制件 27.............虹吸輔助件 271.............虹吸氣室 272............. 入液口 273.............隔離件 3.............過濾缸 31.............抽液物件 H1.............高水位線 L1.............低水位線
