A Gravel vacuum is a vital Device for retaining a clean tank. Over time, particles accumulates within the gravel, impacting drinking water good quality. A gravel vacuum, for instance Lee's Gravel Vacuum with Hose, facilitates effective cleansing without having 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? https://pearlaquatics.my/top-3-important-tips-for-choosing-the-new-aquarium-tank/