This creation is a kind of aquarium background transitions device； it include that aquarium, wheel shaft, belt, motor, protective case, painting canvas etc. are formed； it is wherein to drive wheel shaft again using the motor starting belt in aquarium Hou face； and wheel shaft goes to drive belt 1 again； belt 1 is set to drive wheel shaft 1； achieve the effect that allow whole painting canvas slow start； there is new painting canvas； and painting canvas reaches a fixed point and will turn off motor； old will recycle, and allow the background of aquarium can be in the vision for changing abundant audience.本創作係一種水族箱背景轉換裝置，包括有水族箱、輪軸、皮帶、馬達、保護套、畫布等所組成，其中係利用在水族箱後面的馬達啟動皮帶再帶動輪軸，而輪軸再去帶動皮帶1，使皮帶1帶動輪軸1，達到讓整體的畫布慢速啟動的效果，使新的畫布出現，而畫布到達一個定點就會將馬達關掉，舊的就會回收起來，讓水族箱的背景可呈變化豐富觀賞者的視覺。
