A Gravel vacuum is an important Instrument for sustaining a clean tank. As time passes, particles accumulates from the gravel, impacting water high quality. A gravel vacuum, like Lee's Gravel Vacuum with Hose, facilitates efficient cleansing 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? 本... https://pearlaquatics.my/how-do-the-professionals-perform-pond-cleaning-services/