A Gravel vacuum is a vital tool for preserving a clear tank. Over time, debris accumulates within the gravel, impacting drinking water good quality. A gravel vacuum, including Lee's Gravel Vacuum with Hose, facilitates effective cleansing devoid of 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... https://pearlaquatics.my/how-to-maintain-a-freshwater-aquarium/