In a water tank set with a filter, which includes the filter within a water tank main body, the water tank main body is formed in a vessel-shape having an upper surface thereof opened, storage water being to be stored in the water tank main body, the filter being provided in an interior of the water tank main body. The water tank main body and a filter case of the filter are formed opaque and in a same color as each other. Accordingly, it is difficult for an appreciator who appreciates aquarium fish to see a filter, which is provided within a water tank, from outside of the water tank, thereby enhancing appreciation effects of the aquarium fish.在水槽本體內具備過濾器之附有過濾器的水槽組中，水槽本體可貯留貯留水且形成為上表面開放的容器狀，並在其內部設置有過濾器，水槽本體與過濾器的過濾盒都是形成為同色且不透明。藉此，即作成為對於觀賞觀賞魚的觀賞者而言，設置於水槽內的過濾器變得不容易從水槽的外部看得見，從而提高觀賞魚的觀賞效果。
