A Gravel vacuum is a significant Device for preserving a thoroughly clean tank. Over time, particles accumulates within the gravel, affecting drinking water quality. A gravel vacuum, like Lee's Gravel Vacuum with Hose, facilitates productive 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... https://pearlaquatics.my/product/sobo4x1-5x3-2/