A filter of aquarium is provided, including: a main body, having a receiving space a filtering structure, withdrawably disposed within the receiving space, including a bottom and a lateral wall connected with the bottom, the bottom provided with at least one through hole, the lateral wall and the main body defining at least one flow pathway communicated with an interior of the filtering structure.本發明關於一種水族箱之過濾裝置。該水族箱之過濾裝置包括:一本體,具有一容置空間;一過濾結構,可移出地容設於該容置空間,包括一底部及一連接該底部之側部,該底部設有至少一貫孔,該側部與該本體之間界定至少一連通該過濾結構之內部之一流通空間。1‧‧‧水族箱之過濾裝置10‧‧‧本體13‧‧‧外蓋14‧‧‧把手20‧‧‧過濾結構132‧‧‧全孔
