A kind of Shui nationality to hydrophone,Before the new fish that system ought buy back when aquarium is put into fish jar,First it is placed in water box together with the water in aquarium in sink chamber; Gasing pump must be only opened,Air is inputted by the inlet end of multi-pass pipe joint,The generated bubble in multi-pass pipe joint,I.e. can from liquor charging end along Noboru Shang liquid pushing tube,And entrainment of a small amount of aqueous,It is sent into water box with water droplet kenel to sink chamber,It can be discharged when using to the high what fluid hole of aqueous water level in sink chamber in the cylinder slot for instilling fish jar,And the cylinder trough inner water liquid of fish jar,When gasing pump is inflated,Again being automatically replenished property slave multi-pass pipe joint liquid feeding end enter,It is taken to water box by bubble in sink chamber,So that the water that even fish is bought back,It is simple and convenience efficiently accomplish with aqueous in fish jar to temperature with to water,It improves new fish and buys back the survival rate for being put into fish jar raising.一種水族對水器,係當當水族館買回的新魚放入魚缸前,先連同水族館的水置入對水盒的對水槽室內;僅須打開輸氣泵,空氣由多通接管頭的進氣端輸入,在多通接管頭內所產生的氣泡,即會從送液端沿著送液管上昇,並夾帶著小量水液,以水滴型態送入對水盒的對水槽室,利用對水槽室內水液水位高於出液孔時會排出滴入魚缸的缸槽內,以及魚缸的缸槽內水液,在輸氣泵打氣時,又會自動補充性的從多通接管頭的進液端進入,被氣泡帶到對水盒的對水槽室內,俾使連魚買回的水,簡單且便利性的與魚缸內水液有效完成對溫與對水,提高新魚買回放入魚缸飼養的存活率。