PROBLEM TO BE SOLVED: To enable water in an aquarium to be subjected to water-quality cleaning and filtered by using a filter without giving any care to the filter by detachably attaching a water quality-cleaning cartridge storing a water quality-cleaning agent on the front face of the filter, and to enable the exchange and replacement of the water quality-cleaner to be carried out simply and easily.SOLUTION: The device for cleaning the aquarium water comprises the filter F installed in the interior of the aquarium V, and the water quality-cleaning cartridge C to be detachably attached to the front face of the filter F. The water in the aquarium V is subjected to the water quality-cleaning by the water quality-cleaning agent 24 by being sucked into the water quality-cleaning cartridge C by the drive of an underwater pump 2 of the filter F, and returned into the aquarium V by being filtered with a filter material 7 by being sucked into the filter F.COPYRIGHT: (C)2009,JPO&INPIT【課題】 濾過器の前面に、水質浄化剤を収容した水質浄化カートリッジを着脱可能に取り付け、濾過器に何らの手を加えることなく、その濾過器を利用して水槽内の水を水質浄化したのち濾過することができ、しかも水質浄化剤の交換、取替も簡単、容易に行なうことができる。【解決手段】 水槽V内に設けられる濾過器Fと、この濾過器Fの前面に着脱可能に取り付けられる水質浄化カートリッジCとよりなり、濾過器Fの水中ポンプ2の駆動により、水槽V内の水は、水質浄化カートリッジC内に吸引されて水質浄化剤24により水質浄化されたのち、濾過器F内に吸引されて濾材7により濾過されて水槽V内に戻される。【選択図】 図3
