A Gravel Vacuum is an important Software for retaining a cleanse tank. With time, particles accumulates from the gravel, impacting drinking water quality. A gravel vacuum, such as Lee's Gravel Vacuum with Hose, facilitates economical cleaning 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/how-to-maintain-a-2-feet-aquarium-bigger-fish-tanks/