A Gravel vacuum is an important tool for retaining a clean tank. After some time, debris accumulates within the gravel, influencing water excellent. A gravel vacuum, for instance Lee's Gravel Vacuum with Hose, facilitates efficient cleansing with out 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? 本回答被... https://pearlaquatics.my/how-to-take-care-of-your-flowerhorn-fish/