A Gravel Vacuum is an important Instrument for keeping a cleanse tank. Over time, particles accumulates while in the gravel, impacting h2o quality. A gravel vacuum, for example Lee's Gravel Vacuum with Hose, facilitates successful cleaning with out 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/author/jasun/