A Gravel vacuum is an important Device for keeping a clear tank. With time, debris accumulates inside the gravel, affecting water quality. A gravel vacuum, like Lee's Gravel Vacuum with Hose, facilitates efficient cleansing with out disturbing your fish and decorations. 优点是该软件能保存原始数据的所有属性不会丢失，缺点是没有注册的话，不能进行批量处理，但是转换速度很快！ अन्‍य डेटा गो... https://pearlaquatics.my/how-to-set-up-an-aquarium/