1.Make simpleness of scraping the drop mark or residual silicon on the aquatic surface.
2.While opperating, never make the blade touch any rigidity thing, such as sand; otherwise it will hurt the blade and influence the operation.
3.Clean out the aquatic lichen and attaching material, won't hurt the tank surfact.
1. Imported stainless steel blade, special designed grab handle, very convennient. operation.
2.Patent interface designed, take down or exchange the blade very easily.