A water supply apparatus that can be used even in a shallow aquarium. A water intake section, a mixing chamber for receiving water from the water intake section, a stirring section located in the mixing chamber, and a foam generator located in the water intake section are included. The water supply device 100 is used. Further, a water supply device 100 having a water supply pipe 11 that receives water 16 from the mixing chamber 13 is used. The water intake unit 15 has a tubular shape, and a water supply device 100 having a foam generator 20 attached in the middle of the tubular shape is used. [Selection] Figure 1A【課題】浅い水槽でも利用できる給水装置を提供する。【解決手段】水取り入れ部１５と、水取り入れ部１５から水１６を受け取る混合室１３と、混合室１３に位置する攪拌部１２と、水取り入れ部１５に位置する泡発生器２０と、を含む、給水装置１００を用いる。さらに、混合室１３から水１６を受け取る水供給管１１を有する給水装置１００を用いる。水取り入れ部１５が管状であり、管状の途中に泡発生器２０を取り付けた給水装置１００を用いる。【選択図】図１Ａ
