The aquarium of this creation is removed contamination structure,System penetrates the structure that deposition plate collects the design of dirt and bottom plate is obliquely installed in aquarium,Impurity and the excreta of aquatic organism is set to be easier to what aggregation what aquarium bottom plate,Simultaneously with the control of flow path between barrier sheet complement filter group and extension tube attached,Impurity and aquatic organism excreta that cleaning collects the what bottom plate are optionally completed,Or the sewage for enabling this impure is returned in aquarium again by the filtering group filtration cycle,Thereby reach and collect and clear up the dirty purpose of deposition what bottom of aquaria,The time of cost needed for clearing up aquarium bottom in the prior art with improvement and mental and physical efforts,The dirty of deposition what aquarium bottom is removed in the shortest time and with the easiest way.本創作之水族箱清污結構，係透過水族箱中沉積板匯集污物之設計與底板傾斜設置之結構，使雜質與水生物之排泄物更易於聚集於水族箱底板，同時以阻擋片配合過濾組與外接管間流路之控制，可選擇性的完成清理匯集於該底板之雜質與水生物排泄物，或是令該含雜質之污水由該過濾組過濾循環再回水族箱內，藉此達成匯集並清理沉積於水族箱底部髒污之目的，以改善現有技術中清理水族箱底所需花費的時間與心力，在最短時間及以最簡便的方式清除沉積於水族箱底之髒污。
