PURPOSE: To provide an internal type filtration device provided at the rear in an aquarium in which, particularly in the aquarium, a filter media holder of a filtration case being easily polluted with deposition such as moss is easily removed to thereby facilitate the cleaning work simply and increase efficiency of filtration, and the filtration case is kept cleanly and the style on the appearance is increased.CONSTITUTION: A filtration case C comprises a filtration case body 10 fixed at the rear in the aquarium V, and a filter media holder 20 connected to the filtration case body 10 in an opening/closing and attaching/detaching manner to receive a filter medium F and having a water inlet 28 opened.SELECTED DRAWING: Figure 12COPYRIGHT: (C)2018,JPO&INPIT【目的】 本発明は、水槽内の背面に設けられる内部式濾過装置であって、特に、水槽内で、コケなどの付着で汚れ易い、濾過ケースの濾材ホルダを簡単に取り外して、その清掃作業を簡単、容易にして濾過能率を高めると共に濾過ケースを清潔に保つようにして外観上の体裁を高めるようにした。【構成】 濾過ケースCは、水槽V内の背面固定される濾過ケース本体10と、その濾過ケース本体10に開閉可能かつ着脱可能に連結されて、濾材Fを収容すると共に吸水口28を開口した濾材ホルダ20とよりなる。【選択図】 図12
