A Gravel Vacuum is a vital Resource for sustaining a thoroughly clean tank. With time, debris accumulates within the gravel, impacting h2o top quality. A gravel vacuum, like Lee's Gravel Vacuum with Hose, facilitates efficient 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/4-tips-to-follow-when-building-a-fish-pond/