A kind of aquarium purification device,Its cabinet have interior room,Purification tank,U-shaped purification is equipped in the purification tank to manage,There is the treatment facilities of elongated body in it,Interior room bottom is connected with water inlet pipe one end again,The other end connects U-shaped purification pipe wherein side,Manage the water impurity of interior room into U-shaped purification,And stick impurity through treatment facilities and be in purified water,The U-shaped purification pipe other side is connected with outlet pipe one end in the what purification tank of position again,Its other end goes out purified water to what purification tank,MeanwhileWith the first inflow pipe,Water tank,Second inflow pipe,Pumping and outflow tube form circulation supply purified water to interior room; Thereby,Treatment facilities radial brush body sticks impurity,Rather than impurity is intercepted with filter hole,It is excessive and ineffective to there will not be filter hole,Its is durable,Simply,Readily removable and easy cleaning characteristic replaces filtering consumptive material,And then there is the effect of consumables cost is greatly reduced.一種水族箱淨化裝置,其箱體具備內容室、淨化槽,該淨化槽內設有U型淨化管,其內具有長型體的淨化結構,又以進水管一端連接內容室底部,另一端連接U型淨化管其中一側,使內容室的雜質水進入U型淨化管,並透過淨化結構黏附雜質而呈淨化水,再以位於淨化槽內的出水管一端連接U型淨化管另一側,其另一端使淨化水出至於淨化槽,同時,以第一入流管、儲水箱、第二入流管、泵浦及出流管形成循環供給淨化水至內容室;藉此,淨化結構呈放射狀刷體來黏附雜質,而非以過濾孔來攔截雜質,也不會有過濾孔過大而失去作用,其耐用、簡單、易拆及易清洗特性取代過濾耗材,進而具有大幅降低耗材成本之功效。