A kind of aquatic animal cultivating filtering circulating device of what is closed in this creation system,It is to be provided with conducting element in what breeding trough,The conducting element is equipped with suction hole and water outlet； It is equipped with a gathering ground and a filtering area in one biological lautertuns,The filtering area has been built into biological filter material,The wall surface of the filtering area is equipped with overflow port and is connected with breeding trough； Drip layer is equipped in one drip lautertuns,Filter material is equipped in the drip layer,The drip layer of the bottom is equipped with water-supply-pipe,At above the outlet position what of the water-supply-pipe breeding trough； One draws water unit equipped in the drinking-water pipe position what gathering ground,Again at the drip layer top of the water outlet Wei Yu top layer equipped with a weeping pipe； In breeding trough described in the first outlet side installing what of one flow dynamic unit,Its second outlet side is installed in the above-mentioned filtering area of what,Using can Rapid Circulation filtering water.本創作係關於一種水族養殖用過濾循環裝置，係於養殖槽內設置有導流件，該導流件設有吸水孔及出水端；一生物過濾槽內設有一集水區及一過濾區，該過濾區內置入有生物濾材，該過濾區之壁面設有溢流口與養殖槽相連通；一滴流過濾槽內設有滴流層，該滴流層內設有濾材，最底層之滴流層設有輸水管，該輸水管之出口位於該養殖槽上方處；一抽水單元設有一抽水管位於該集水區內，又設有一滴流管之出水口位於最上層之滴流層上方處；一水流動力單元之第一出氣端裝設於所述養殖槽內，其第二出氣端裝設於上述過濾區內，藉以能快速循環過濾水質。
