A Gravel vacuum is a significant tool for sustaining a cleanse tank. After a while, debris accumulates during the gravel, influencing drinking water high-quality. A gravel vacuum, such as Lee's Gravel Vacuum with Hose, facilitates effective cleaning without the need of 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/how-to-keep-a-freshwater-aquarium-clean/