| 摘要 |
A device for cleaning gravel in an aquarium includes a pump connected to a gravel casing such that the pump forms the top of the structure and the gravel casing the remaining body below the pump. The gravel casing houses the pump intake section and filtering material and when its base is placed over an area of gravel during cleaning will draw a debris and impurities water mixture from the gravel, and into the filtering material where the debris is trapped, thus filtering the water mixture which is returned to the tank via the pump's discharge section.
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