| 摘要 |
An aquarium filter which incorporates a protein skimmer with a plurality of plenum trays stacked in the main filter chamber. The unit is placed on the inside back wall of the aquarium. A venturi pump injects an air and water mixture into the skimmer chamber. The foam generated floats to the top of the skimmer where it is removed by a low profile skimmer spout. The water flows down to the bottom of the skimmer and into the plenum chamber where it flows around the self contained plenum trays. A plenum tray consists of a five sided rectangular box that is open at the top. A sand screen creates a low oxygen water plenum at the bottom of the tray. This plenum is overlaid by several inches of sand. At the opposite end from the skimmer is a particulate filter grate through which the water is returned to the aquarium.
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