| 摘要 |
A fish tank filter comprising an overflow tank for collecting surface waters from a fish tank, means for conveying the waters to a dry filter, a dry filter comprising a plurality of vertically stacked filter pans each having a filter material therein, a means for collecting the effluent from the dry filter and conveying it to a wet filter, a wet filter comprising a plurality of serially arranged filter material-containing filter compartments in a tank, and means for returning purified water to the fish tank.
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