System of the present invention be it is a kind of recyclable remove contamination and the aquarium of running water,It has a function part,One ornamental portion and an interconnecting part,Function part set one first water circulation power device,One second water circulation power device,One sluice,The simultaneous nitrifier ectogenesis device of one filtering,One fluid channel and an oxygen-making trough； Ornamental portion and function part accommodate jointly oxygen,Carbon dioxide and culturing liquid,Its sequentially from bottom to top be equipped with a bottom flow song road,One transparent liquid support device and an aquatic animal cultivating space,Transparent liquid support device to cultivate an at least aquatic plant,Aquatic animal cultivating space to cultivate an at least aquatic-organism,And it can switch between what list water circulation dynamic mode and double water circulation dynamic modes； When position what list water circulation dynamic mode,System makes culturing liquid continue what to watch between portion and function part to be in that running water flows and supplies oxygen； When the double water circulation dynamic modes of position what,System makes culturing liquid dissolve in predetermined carbon dioxide,And rise from ornamental portion bottom,And dirt in water is pushed and is filtered towards function part direction and is removed contamination.本發明係為一種可循環清污及活水之水族箱，其具有一功能部、一觀賞部及一連通部，功能部設一第一水流循環動力裝置、一第二水流循環動力裝置、一水閘、一過濾兼硝化菌培育繁殖裝置、一流體通道及一製氧槽；觀賞部與功能部共同容納氧氣、二氧化碳及養殖液，其依序由下而上設有一底部流體曲道、一透液支撐裝置及一水族養殖空間，透液支撐裝置用以養殖至少一水中植物，水族養殖空間用以養殖至少一水族生物，並可於單水流循環動力模式與雙水流循環動力模式間切換；當位於單水流循環動力模式，係使養殖液持續於觀賞部與功能部間呈活水流動而供應氧氣；當位於雙水流循環動力模式，係使養殖液溶入預定二氧化碳，並從觀賞部底部上升，且將水中污物朝功能部方向推送並進行過濾清污。
