A Gravel Vacuum is a significant Device for protecting a thoroughly clean tank. Eventually, particles accumulates during the gravel, influencing h2o high quality. A gravel vacuum, for example Lee's Gravel Vacuum with Hose, facilitates efficient cleansing 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/fish-aquarium-cleaning/