A Gravel vacuum is a vital Device for protecting a clean tank. After a while, particles accumulates during the gravel, affecting water top quality. A gravel vacuum, for example Lee's Gravel Vacuum with Hose, facilitates economical cleansing without disturbing your fish and decorations. 本回答被题主选为最佳回答 , 对您是否有帮助呢? 本回答被专家选为最佳回答 , 对您是否有帮助呢? 本回答被题... https://pearlaquatics.my/category/pearl-aquatics/page/2/