A Gravel vacuum is an important Software for preserving a clean up tank. With time, debris accumulates during the gravel, affecting drinking water good quality. A gravel vacuum, which include Lee's Gravel Vacuum with Hose, facilitates successful 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 , https://pearlaquatics.my/top-3-important-tips-for-choosing-the-new-aquarium-tank/