| 摘要 |
PROBLEM TO BE SOLVED: To provide an internal type filtration device provided in an aquarium in which suspended matter such as remaining bait or dust in the aquarium is prevented from being sucked in the filtration device out of an upper water intake for sucking the water in the filtration device, in order to filter non-purified water in the aquarium. ! SOLUTION: An upper water intake 2 for sucking the non-purified water in an aquarium V into a filtration case C is formed between a lower surface of an outer circumferential edge of a cover plate L and an upper edge 1a of an opening upper surface 1 of the filtration case C. ! COPYRIGHT: (C)2015,JPO&INPIT |
