A Gravel vacuum is a vital tool for maintaining a thoroughly clean tank. As time passes, particles accumulates in the gravel, influencing h2o good quality. A gravel vacuum, including Lee's Gravel Vacuum with Hose, facilitates effective cleansing with no 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/how-to-keep-your-aquarium-clean/